omap: Start using CONFIG_SOC_OMAP

We want to have just CONFIG_ARCH_OMAP2, 3 and 4. The rest
are nowadays just subcategories of these.

Search and replace the following:

ARCH_OMAP2420		SOC_OMAP2420
ARCH_OMAP2430		SOC_OMAP2430
ARCH_OMAP3430		SOC_OMAP3430

No functional changes.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Thomas Weber <weber@corscience.de>
Acked-by: Sourav Poddar <sourav.poddar@ti.com>
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index e26e504..aedcb3b 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -312,7 +312,7 @@
 }
 #endif
 
-#ifdef CONFIG_ARCH_OMAP2420
+#ifdef CONFIG_SOC_OMAP2420
 static int __init omap242x_sram_init(void)
 {
 	_omap2_sram_ddr_init = omap_sram_push(omap242x_sram_ddr_init,
@@ -333,7 +333,7 @@
 }
 #endif
 
-#ifdef CONFIG_ARCH_OMAP2430
+#ifdef CONFIG_SOC_OMAP2430
 static int __init omap243x_sram_init(void)
 {
 	_omap2_sram_ddr_init = omap_sram_push(omap243x_sram_ddr_init,