Fix for data and roaming icons

- Enable data connected flag based on the data state.

- Do not display data icon in data connected state
if radio type is unknown

- Display data icon independent of voice service state
i.e even if voice network is unavailable

- Show cdma roaming indicators if either voice
or data is roaming.

- Cleanup roaming indicator default values.
Set default CDMA Eri index to roaming off

- Show service if either voice/data is in
service if ro.config.combined_signal is true

- Consider eri only when in service

- Add in service check to isCdmaEri.
roaming related information
in registration state will not be valid
during out of service.

Change-Id: I915421a6f5906d80ed5b8dd9c433115ad5df1f14
CRs-Fixed: 285986, 303275, 326204, 326634, 333008, 339297
(cherry picked from commit 7a3c1c35ed00f17dd345f824690877999dff2042)
(cherry picked from commit 83894db8b770d770891d42d078ba6d4dcfb29fb5)
Destination PS no: 2

Signed-off-by: hany <hany.alsamman@gmail.com>
Fix Disable low battery indicator

old derp about 2 months
base: fix external sdcard mountpoint

It needs to add that line on init.xxxx.rc on rootdir folders.

"chown root root /mnt/media_rw"

Needed for devices that has some troubles mounting storages.

Credits: http://forum.xda-developers.com/showthread.php?t=2537793

Change-Id: I0c9e2ae5439c8d8a762904e2760eb6590ce77a62