staging: r8188eu: fix scheduling while atomic bugs

These allocations are sometimes done under a spin lock so they
have to be atomic. The function call tree is:

-> update_beacon() <- takes a spin lock
   -> update_BCNTIM()
      -> set_tx_beacon_cmd()

Fixes: 79f712ea ("staging: r8188eu: Remove wrappers for kalloc() and kzalloc()")
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210819092423.4349-1-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -8130,13 +8130,13 @@ u8 set_tx_beacon_cmd(struct adapter *padapter)
 	u8 res = _SUCCESS;
 	int len_diff = 0;
 
-	ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
+	ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
 	if (!ph2c) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	ptxBeacon_parm = kzalloc(sizeof(struct Tx_Beacon_param), GFP_KERNEL);
+	ptxBeacon_parm = kzalloc(sizeof(struct Tx_Beacon_param), GFP_ATOMIC);
 	if (!ptxBeacon_parm) {
 		kfree(ph2c);
 		res = _FAIL;