ARM: dts: msm: Allocate memory for memshare clients for MSM8937

The patch enables allocation of memory for clients of memshare
and marks the appropriate client guaranteed.

Change-Id: Ie44c1766418f00c8846547fc4208e5f702c46fdc
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>