msm: 8960: Invoke the RPM interface for powering off memory.

Make the board specific memory power routine invoke the RPM
interface to toggle the physical memory state between active and
deep power down.

Signed-off-by: Naveen Ramaraj <nramaraj@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-msm8960.c b/arch/arm/mach-msm/board-msm8960.c
index 217e1a5..20d63e0 100644
--- a/arch/arm/mach-msm/board-msm8960.c
+++ b/arch/arm/mach-msm/board-msm8960.c
@@ -955,7 +955,7 @@
 static int msm8960_change_memory_power(u64 start, u64 size,
 	int change_type)
 {
-	return size;
+	return soc_change_memory_power(start, size, change_type);
 }
 
 #ifdef CONFIG_MSM_CAMERA