libertas: fix the 'compare command with itself' properly
|libertas: Invalid CMD_RESP 8012 to command 50!
The special case got mixed up in 8a96df80b3.
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
authored by Sebastian Siewior and committed by John W. Linville 5f0547c2 97ed8390