soc: qcom: Add Minidump support

This enables minidump feature. It allows various client subsystems to
register respective dump regions. Registered Minidump dump regions
would be collected on system crash.

Change-Id: I14377cfba8703f0acadc29e51e2cf7563616571d
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
[isaacm@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>