move FSG reload properties into /persist/mdm

persistent properties aren't available before encryption, so
use files in /persist/mdm to keep track of which carrier we
last loaded (etc.)

Leave persist.radio.fsg_reload_on=1 here, so we can disable
it for some lab testing.

b/17013394 Shamu After Sub System Restart Radio does not connect
b/16876072 Device fails to show screen after decrypting device

Change-Id: I5c5b6bcad90661cd1402b1a295a2943f5051e8a1
Signed-off-by: Iliyan Malchev <malchev@google.com>
7 files changed