Telephony: Add data rat constant

This event constant is used in DcTracker

Change-Id: I1f9b34a8689c43c2586e9e3a92f0453649775d73
(cherry picked from commit f7ca98035479b670ff51bc9298fd7928a5e0f80d)
(cherry picked from commit f4d8f7b8fa390302b9cc51a5640e017ff393dfcc)
(cherry picked from commit 77d810390fbca8cb1d10bce148035fada414e0eb)
Property constants to support OMH

Add static constant variables required for OMH support

Change-Id: Idfeb2f3f1a3aa0403a7ff0ab7c69fc945d9e7083
(cherry picked from commit cf61f807ee07b4497da78c6bb753a835fa46b5b5)
(cherry picked from commit 8e68d056ca7c14fdefecbcf9b2b69048f092754a)
(cherry picked from commit 4a3b31e38c92bb1943c9290d8a4dd535b42bbd07)
Update markings for the OMH changes

Update markings for the OMH gerrit: 478700

Change-Id: I4cdebe5f383efe1153bfc0a58bafb4168106736b
(cherry picked from commit 7adf9268e08978c9a458c98ee3465293e383c35c)
(cherry picked from commit 5ed1fe759759b41a1fa886a35f46ea2984700fdc)
(cherry picked from commit 5db5f0c0f7e5f57c81a0a4fe5a625f98f711a1ab)
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 7a3c1c3)
(cherry picked from commit 83894db)
Destination PS no: 2
Conflicts:
            core/res/res/values/config.xml