staging: brcm80211: define SHOW_EVENTS macro only for debugging

The macro SHOW_EVENTS will only be defined when Kconfig setting
BRCMDBG is set.

Signed-off-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmfmac/Makefile

@@ -20,10 +20,9 @@ ccflags-y :=			\
 	-DBRCM_FULLMAC		\
 	-DBRCMF_FIRSTREAD=64	\
 	-DBRCMF_SDALIGN=64	\
-	-DMAX_HDR_READ=64	\
-	-DSHOW_EVENTS
+	-DMAX_HDR_READ=64
 
-ccflags-$(CONFIG_BRCMDBG)	+= -DDHD_DEBUG
+ccflags-$(CONFIG_BRCMDBG)	+= -DDHD_DEBUG -DSHOW_EVENTS
 
 ccflags-y += \
 	-Idrivers/staging/brcm80211/brcmfmac	\