arm/dt: 8974: Add ocmem support for 8974 in device tree
arm/dt: 8974: Add ocmem support for 8974 in device tree

ocmem is not present on all targets. By adding ocmem present information
in device tree, calls to ocmem can only be made for targets supporting
ocmem (msm8974 v1 and v2). For targets with no ocmem support no ocmem
calls are made.

Change-Id: I122312459483a257aacf9950d059652256bf8bba
Signed-off-by: Ashray Kulkarni <f270451dcbab17e65aa34ef9555bcd382481f8b3@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas