ARM: dts: msm: Add Qseecom heap for sdxprairie

The qseecom heap and qseecom_ta heap will be used
by qseecom userspace library for allocating memory
for loading trusted applications.

Change-Id: Ib4348ac2625150cd561dcef356fb01b16abe5465
Signed-off-by: Anmolpreet Kaur <anmolpre@codeaurora.org>