ARM: dts: msm: Remove/Replace CCI, L2 and CPU retention

CCI, L2 and CPU Retention is not supported in current hardware.
Replace CCI and L2 retention sequence. Remove CPU retention sequence.

Change-Id: I54b3a47f55fb91b70f3ee2e1c8089938976da849
Signed-off-by: Karthik Parsha <kparsha@codeaurora.org>