msm: Create static mapping for IMEM on 8974

Allow writing to the IMEM during early bootup.
Use RPM Message base address as IMEM region to
workaround IMEM issues.

Change-Id: I4afaf5c2299ad55db861299195785a8173fcfb7d
Signed-off-by: Hanumant Singh <hanumant@codeaurora.org>
2 files changed