Initalize the recovery message

ISSUE:
There are uninitialized memory buffers when processing fastboot commands
causing information disclosure leading to a general bypass for a defense
in depth or exploit mitigation technology in a privileged process the
TCB or the TEE.

This patch initializes each allocation of struct recovery_message to 0.

FPIIM-2015

Change-Id: I168ac218e0c75336f2aab51df00955035f3cf162
1 file changed