SignalStrength: Hotfix TD-SCDMA 1 + 2

These checks need to be reviewed, they're making unwarranted assumptions
about signal value formats and possible tech combos.
This appears to work for all possible scenarios I was able to test,
but the "LTE checks" shouln't be necessary at all.

Change-Id: I889e17e79ca2b1b5fcaa393741e19bef9d3f4229

Conflicts:
	telephony/java/android/telephony/SignalStrength.java
SystemUI: fix torch toggle delay on boot

Change-Id: I7b1a1a310cf88fdde4250ae40643570016e1f380
Signed-off-by: Roman Birg <roman@cyngn.com>