staging: rtl8821ae: a couple macro expansion bugs

These macros need parentheses, otherwise it causes a macro expansion bug
when they are used like this:

	ch->flags &= ~IEEE80211_CHAN_NO_IBSS;

This was found using Smatch:
drivers/staging/rtl8821ae/regd.c:200 _rtl_reg_apply_beaconing_flags()
	warn: the 'IEEE80211_CHAN_NO_IBSS' macro might need parens
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8821ae/regd.h

@@ -30,8 +30,8 @@
 #ifndef __RTL_REGD_H__
 #define __RTL_REGD_H__
 
-#define IEEE80211_CHAN_NO_IBSS		1<<2
-#define IEEE80211_CHAN_PASSIVE_SCAN	1<<1
+#define IEEE80211_CHAN_NO_IBSS		(1 << 2)
+#define IEEE80211_CHAN_PASSIVE_SCAN	(1 << 1)
 #define WIPHY_FLAG_CUSTOM_REGULATORY	BIT(0)
 #define WIPHY_FLAG_STRICT_REGULATORY	BIT(1)
 #define WIPHY_FLAG_DISABLE_BEACON_HINTS	BIT(2)