Skip pollVersion() and pollGnssCapabilities() if gps_auto_config = OFF

[WizzardDr]

Modified gps_ublox.c to skip pollVersion() and pollGnssCapabilities() if gps_auto_config = OFF. This is to support an RX only UART connection of the GPS module.

I need to use my preconfigured GPS without connecting it to the FC UART RX (just TX), so via the CLI I have set set gps_auto_config = OFF.

set gps_auto_config = OFF alone doesn't work since pollVersion() and pollGnssCapabilities() are still continually polled.

If the GPS RX isn't connected the UBX_ACK_GOT_ACK isn't received by the FC which results in repeated a GPS timeout waiting for a "GPS Version" response despite valid GPS data being received.

My solution is to skip pollVersion() and pollGnssCapabilities() if GPS auto config is disabled.

This solution resolved the above problem but may or may not cause other problems if the GPS Version and GNSS capabilities are needed (while GPS auto config is disabled) for something else that I am unaware of.