defconfig: msm: Enable CONFIG_LOCALVERSION_AUTO

Enable LOCALVERSION_AUTO option so that the linux
version string contains more information on the tree
it was built from. It is already enabled on most MSM
targets so enable it on the rest.

Change-Id: I5ddb623b48e0fe05a21caa3f3ecbf3086e7aeba6
Signed-off-by: Kaushal Kumar <kaushalk@codeaurora.org>