platform: Fix the gid for the theme manager service

It was mismatched with fs_config, resulting in attribution of the
"-1" gid

Change-Id: Ia6d55af0b39f659da2965f9bc0bda0df5c775ba4
Merge "platform: Fix the gid for the theme manager service" into cm-10.2
Merge branch 'cm-10.2' of git://github.com/CyanogenMod/android_frameworks_base into cd-4.3