Fixing blocked number ringtone after E911 call

+ The code which silences the ringtone for incoming calls from
blocked numbers did not check to see if blocking should be disabled
due to a recent incoming call.

+ This CL fixes that issue and rearranges logic to improve logging.

Change-Id: I6034a0ba26db09624d7ca6beb6f52bea9fda558a
Fixes: 26687001
(cherry picked from commit 256281e2)