staging: rtl8712: fix the bssid in mp_start_test()

We recently moved "bssid" off the stack, and allocated it with kmalloc()
instead. Unfortunately, this one line was overlooked so it will copy
random data into the &tgt_network->network instead of the data we want.

Fixes: 0b18e5fe6008 ("staging: rtl8712: rtl871x_mp_ioctl: Move a large data struct onto the heap")
Signed-off-by: Dan Carpenter <[e-mail]>
Link: https://lore.kernel.org/r/YJ6IrfkbdaTHgpEv@mwanda
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rtl8712/rtl871x_mp_ioctl.c

···
 	/* 3 3. join pseudo AdHoc */
 	tgt_network->join_res = 1;
 	tgt_network->aid = psta->aid = 1;
-	memcpy(&tgt_network->network, &bssid, length);
+	memcpy(&tgt_network->network, bssid, length);
 	_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
 	r8712_os_indicate_connect(padapter);
 	/* Set to LINKED STATE for MP TRX Testing */