mdm6600: update driver (again)

From CyanogenMod-Atrix.

Change-Id: I8b7a95a5025a8b033636e103944a7307f43d40b2
mdm6600: revise wake_work

Address loss of connectivity after sleep.

Change-Id: Iad9de069bfef14a79548529b4af7b026fab8cbc9
Merge branch 'cm-10.1' into martincz