ARM: OMAP2+: am33xx: Change cpu_is_am33xx to soc_is_am33xx

As per recent discussion on the linux-omap list, we are
moving in the direction where, we will have only architecture,
ARCH_OMAP2PLUS and all devices/platforms will be treated
as a SoC underneath.

So the first step in this direction is to adopt this change
for all new devices getting in, converting
cpu_is_am33xx/335x() ==> soc_is_am33xx/335x()

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 564cb4c..70cf825 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -123,7 +123,7 @@
 				omap_sram_size = 0x800; /* 2K */
 			}
 		} else {
-			if (cpu_is_am33xx()) {
+			if (soc_is_am33xx()) {
 				omap_sram_start = AM33XX_SRAM_PA;
 				omap_sram_size = 0x10000; /* 64K */
 			} else if (cpu_is_omap34xx()) {
@@ -386,7 +386,7 @@
 		omap242x_sram_init();
 	else if (cpu_is_omap2430())
 		omap243x_sram_init();
-	else if (cpu_is_am33xx())
+	else if (soc_is_am33xx())
 		am33xx_sram_init();
 	else if (cpu_is_omap34xx())
 		omap34xx_sram_init();