Telephony: Unregister from UiccController when disposed

Change-Id: I296d3f292a72d2f8181f866bd1de7637c8333c63
Reset data stall watch dog after doing recovery

Without resetting data stall watch dog, one data
stall will lead to radio reset if there is no
data traffic after doing recovery.

Change-Id: Icc7b1e7f160cd0c8910f7132d7c2fea0d29803e5
Signed-off-by: Bin Li <libin@marvell.com>