Only show status bar blocker view if nav bar is translucent.

It's the background drawable of the translucent nav bar that makes the
blocker view necessary (as the background creates a visual 'gap' between
status bar and visual start of the nav bar), so if the nav bar isn't
translucent, there's no need for the view.

Change-Id: I684c8d24abe3d4393ae7db88fe5023aa65836164
Keyguard: fix chopped keyguard on hdpi MSim devices

Both the CarrierText and MSimCarrierText were in the View, taking
additional space. Remove CarrierText from the view in case of MSim.

Change-Id: I803695044d06470ef9af59863ba92444e41488f5
ProximitySensor: check for correct MaxRange value

Use TYPICAL_PROXIMITY_THRESHOLD for devices that returns incorrect mProximitySensor.getMaximumRange() value;

Presto's proximity sensor returns values: 0.0f(near) or 5.0f(far).
mProximitySensor.getMaximumRange() must return proximity sensor's availible range, but it always return 0, so mProximityThreshold is also 0.

So boolean positive = distance >= 0.0f && distance < mProximityThreshold;  positive will never be
true.
The cause of this problem is proprietary sensor.msm8660.so, it must set proper Range and Resolution for proximity sensor.

Change-Id: I0cf81fd20f210115cbd6db10c0070b12f1c57336