mtd/drivers/nand: use HZ macros

HZ unit conversion macros are available in units.h, use them and remove
the duplicate definition.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Daniel Lezcano <[email protected]>
Acked-by: Miquel Raynal <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Cc: Chanwoo Choi <[email protected]>
Cc: Christian Eggers <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Lars-Peter Clausen <[email protected]>
Cc: Lukasz Luba <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Cc: MyungJoo Ham <[email protected]>
Cc: Peter Meerwald <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Zhang Rui <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

drivers/mtd/nand/raw/intel-nand-controller.c

@@ -20,6 +20,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/types.h>
+#include <linux/units.h>
 #include <asm/unaligned.h>
 
 #define EBU_CLC			0x000
@@ -102,7 +103,6 @@
 
 #define MAX_CS	2
 
-#define HZ_PER_MHZ	1000000L
 #define USEC_PER_SEC	1000000L
 
 struct ebu_nand_cs {