[ESP32] Details for using ccache for idf builds (#21340)

* [ESP32] Details for using ccache for idf builds

* Remove unavailable menuconfig options readmes

.github/.wordlist.txt

@@ -182,6 +182,7 @@ CatalogVendorId
 CBB
 cbd
 CBOR
+Ccache
 ccf
 CCMP
 CCS

examples/all-clusters-app/esp32/README.md

@@ -113,6 +113,14 @@ make sure the IDF_PATH has been exported(See the manual setup steps above).
         $ source ./scripts/activate.sh
         ```
 
+-   Enable Ccache for faster IDF builds
+
+    It is recommended to have Ccache installed for faster builds
+
+    ```
+    $ export IDF_CCACHE_ENABLE=1
+    ```
+
 -   Target Set
 
 To set IDF target, first:
@@ -278,8 +286,8 @@ the ESP32 all-clusters-app to commission it onto a Wi-Fi network:
 
 Parameters:
 
-1. Discriminator: 3840 (configurable through menuconfig)
-2. Setup-pin-code: 20202021 (configurable through menuconfig)
+1. Discriminator: 3840
+2. Setup-pin-code: 20202021
 3. Node-id: 12344321 (you can assign any node id)
 
 ### Cluster control

examples/all-clusters-minimal-app/esp32/README.md

@@ -113,6 +113,14 @@ make sure the IDF_PATH has been exported(See the manual setup steps above).
         $ source ./scripts/activate.sh
         ```
 
+-   Enable Ccache for faster IDF builds
+
+    It is recommended to have Ccache installed for faster builds
+
+    ```
+    $ export IDF_CCACHE_ENABLE=1
+    ```
+
 -   Target Set
 
 To set IDF target, first:
@@ -278,8 +286,8 @@ the ESP32 all-clusters-minimal-app to commission it onto a Wi-Fi network:
 
 Parameters:
 
-1. Discriminator: 3840 (configurable through menuconfig)
-2. Setup-pin-code: 20202021 (configurable through menuconfig)
+1. Discriminator: 3840
+2. Setup-pin-code: 20202021
 3. Node-id: 12344321 (you can assign any node id)
 
 ### Cluster control

examples/bridge-app/esp32/README.md

@@ -135,6 +135,14 @@ make sure the IDF_PATH has been exported(See the manual setup steps above).
     ESP32 based device types, please refer
     [examples/all-clusters-app/esp32](https://github.com/project-chip/connectedhomeip/tree/master/examples/all-clusters-app/esp32)
 
+-   Enable Ccache for faster IDF builds
+
+    It is recommended to have Ccache installed for faster builds
+
+    ```
+    $ export IDF_CCACHE_ENABLE=1
+    ```
+
 -   To build the demo application.
 
           ```
@@ -255,8 +263,8 @@ the ESP32 all-clusters-app to commission it onto a Wi-Fi network:
 
 Parameters:
 
-1. Discriminator: 3840 (configurable through menuconfig)
-2. Setup-pin-code: 20202021 (configurable through menuconfig)
+1. Discriminator: 3840
+2. Setup-pin-code: 20202021
 3. Node-id: 12344321 (you can assign any node id)
 
 ### Cluster control

examples/light-switch-app/esp32/README.md

@@ -65,6 +65,14 @@ make sure the IDF_PATH has been exported(See the manual setup steps above).
 
         $ source ./scripts/activate.sh
 
+-   Enable Ccache for faster IDF builds
+
+    It is recommended to have Ccache installed for faster builds
+
+    ```
+    $ export IDF_CCACHE_ENABLE=1
+    ```
+
 -   Target Set
 
         $ idf.py set-target esp32

examples/lighting-app/esp32/README.md

@@ -75,6 +75,14 @@ make sure the IDF_PATH has been exported(See the manual setup steps above).
 
         $ source ./scripts/activate.sh
 
+-   Enable Ccache for faster IDF builds
+
+    It is recommended to have Ccache installed for faster builds
+
+    ```
+    $ export IDF_CCACHE_ENABLE=1
+    ```
+
 -   Target Set
 
         $ idf.py set-target esp32

examples/lock-app/esp32/README.md

@@ -57,6 +57,14 @@ make sure the IDF_PATH has been exported(See the manual setup steps above).
 
         $ source ./scripts/activate.sh
 
+-   Enable Ccache for faster IDF builds
+
+    It is recommended to have Ccache installed for faster builds
+
+    ```
+    $ export IDF_CCACHE_ENABLE=1
+    ```
+
 -   Target Set
 
         $ idf.py set-target esp32(or esp32c3)
@@ -171,8 +179,8 @@ the ESP32 all-clusters-app to commission it onto a Wi-Fi network:
 
 Parameters:
 
-1. Discriminator: 3840 (configurable through menuconfig)
-2. Setup-pin-code: 20202021 (configurable through menuconfig)
+1. Discriminator: 3840
+2. Setup-pin-code: 20202021
 3. Node-id: 12344321 (you can assign any node id)
 
 ### Cluster control

examples/temperature-measurement-app/esp32/README.md

@@ -57,6 +57,14 @@ make sure the IDF_PATH has been exported(See the manual setup steps above).
 
         $ source ./scripts/activate.sh
 
+-   Enable Ccache for faster IDF builds
+
+    It is recommended to have Ccache installed for faster builds
+
+    ```
+    $ export IDF_CCACHE_ENABLE=1
+    ```
+
 -   Target Select
 
         $ idf.py set-target esp32(or esp32c3)
@@ -171,8 +179,8 @@ the ESP32 all-clusters-app to commission it onto a Wi-Fi network:
 
 Parameters:
 
-1. Discriminator: 3840 (configurable through menuconfig)
-2. Setup-pin-code: 20202021 (configurable through menuconfig)
+1. Discriminator: 3840
+2. Setup-pin-code: 20202021
 3. Node-id: 12344321 (you can assign any node id)
 
 ### Cluster control