msm: ramdump: Add stubs if not enabled

For targets that do not support subsytem restart, calling any of the
ramdump APIs will result in a compilation failure.

Add stubs for ramdump API.

Change-Id: I8ba956a758d05d983c55ee12c33592671d1e8b7c
Signed-off-by: Eric Holmberg <eholmber@codeaurora.org>
1 file changed