mfd: tps80031: fix compilation warning

Fixing compilation warning:

kernel/drivers/mfd/tps80031.c: In function 'tps80031_init_ext_control.isra.4':
kernel/drivers/mfd/tps80031.c:594:6: warning: 'ret' is used uninitialized in this
			function [-Wuninitialized]

Change-Id: I7d9cfab7b03ffe085ef4db7c9b08b0f2cb4e6fec
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/117329
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: Gerrit_Virtual_Submit
1 file changed