SystemUI: Only show H+ if config_hspa_data_distinguishable is set

Currently the UI is not consistent. If config_hspa_data_distinguishable
is not set you get 3G icon on HSPA and H+ icon on HSAPP.

Change-Id: I09db3a2902e30290206eafd1f64c940bab5b89e6
Merge "SystemUI: Only show H+ if config_hspa_data_distinguishable is set" into kk