spcom: Fix inconsistent locking

This patch addresses the following locking error:

spcom.c:2041 spcom_handle_write() warn: inconsistent returns
'mutex:&spcom_dev->cmd_lock'.

Bug: 77543262
Test: build & boot
Change-Id: Idb8ce10381d762b6836e9c31ef73fb83a2a7ba7c
Signed-off-by: David Lin <dtwlin@google.com>
1 file changed