In ueventd support has been added to read firmware path from
vendor. It wil parse /vendor/firmware_mnt/image information
and add in look up path/search path for loading firmware.
Change uid of /vendor/firmware_mnt back to system as kernel
firmware loading is removed. Previously root permissions were
required to support kernel firmware loading.
Change-Id: I560ed75ee07626094acbc879b615190cf3a9faa3
Signed-off-by: SamarV-121 <samarvispute121@gmail.com>