global: Migrate CONFIG_PL011_CLOCK to CFG

Perform a simple rename of CONFIG_PL011_CLOCK to CFG_PL011_CLOCK

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/corstone1000.h b/include/configs/corstone1000.h
index 8aec52d..3347c11 100644
--- a/include/configs/corstone1000.h
+++ b/include/configs/corstone1000.h
@@ -16,7 +16,7 @@
 
 #define V2M_BASE		0x80000000
 
-#define CONFIG_PL011_CLOCK	50000000
+#define CFG_PL011_CLOCK	50000000
 
 /* Physical Memory Map */
 #define PHYS_SDRAM_1		(V2M_BASE)