msm: camera: cpas: Return error code for resource enable failure

In the case of resource enable failure we need to return the error code
to give the caller information about failure.

Change-Id: I72f3f8619445abf9a5aececfc83cf9d2d680d5d6
CRs-Fixed: 2709705
Signed-off-by: Wyes Karny <wkarny@codeaurora.org>