ARM: dts: msm: Add memshare for sdmmagpie

Memshare driver allocates and share the memory with the modem
clients for their use. The device tree information for memshare
driver on sdmmagpie are added to specify client details.

Change-Id: I1d0768b0fa1c60818da478c9c214ba44aeeb3906
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>