wpa_supplicant: fix BR2_PACKAGE_WPA_SUPPLICANT_DEBUG_SYSLOG option

Signed-off-by: Sven Neumann <neumann@teufel.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/wpa_supplicant/wpa_supplicant.mk

@@ -105,9 +105,7 @@ endif
 endif
 
 ifeq ($(BR2_PACKAGE_WPA_SUPPLICANT_DEBUG_SYSLOG),y)
-define WPA_SUPPLICANT_DEBUG_CONFIG
-	$(SED) 's/\(#\)\(CONFIG_DEBUG_SYSLOG.*\)/\2/' $(WPA_SUPPLICANT_CONFIG)
-endef
+	WPA_SUPPLICANT_CONFIG_ENABLE += CONFIG_DEBUG_SYSLOG
 endif
 
 ifeq ($(BR2_PACKAGE_READLINE),y)