global: Migrate CONFIG_PHY_IRAM_BASE to CFG

Perform a simple rename of CONFIG_PHY_IRAM_BASE to CFG_PHY_IRAM_BASE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/exynos5420-common.h b/include/configs/exynos5420-common.h
index bd43efa..b75fe1b 100644
--- a/include/configs/exynos5420-common.h
+++ b/include/configs/exynos5420-common.h
@@ -10,7 +10,7 @@
 
 #define CFG_IRAM_TOP			0x02074000
 
-#define CONFIG_PHY_IRAM_BASE		0x02020000
+#define CFG_PHY_IRAM_BASE		0x02020000
 
 /*
  * Low Power settings