Telephony(MSIM): Fix Cellular Data Preference

While voice call is active, if cellular data preference
updated via updateCellularDataValues(), the cellular data
preference option getting enabled.
To fix this consider the call state while updating
cellular data preference in updateCellularDataValues().

bug:27635796

Change-Id: I5306f021e8bdeecc845d50a3b55b9c07d1b2c837
1 file changed