soc: qcom: Add M4M Cache ERP snapshot

Add the MSM 64bit cache and M4M error reporting
driver which is useful to detect correctable/uncorrectable
L1, L2, L3 cache errors as well as cluster interconnect
errors. Currently the driver does not handle restoring
L2, L3 error configuration settings in case of their
respective power collapse scenarios.

This is a snapshot of the m4m/cache_erp driver as of
msm-3.14 commit:

3bc54cf86bdc7affa7cd4bf7faa3c57fe8f8819d (Merge "msm:
camera: Add dummy sub module in sensor pipeline")

Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>