msm: Add nodes in socinfo, to store APPS image version in SMEM

- Nodes for image_version, image_crm_version and image_variant updated in
order to store APPS image version.
- We get this info from userspace and pass it to SMEM.
- UGO write access added to select_image node, in order DIAG daemon
to be able to change it from userspace.

Change-Id: I9792aed3a74c4ba156b1b387d3ff38a1c5a13088
Signed-off-by: Yulian Shandorov <jshandorov@codeaurora.org>