wireless-regdb: fix Makefile indentation

Signed-off-by: John Crispin <john@phrozen.org>
(cherry picked from commit 8562e77953e76c1ec7ba01ce18dc468d5628f3dc)

package/firmware/wireless-regdb/Makefile

@@ -12,11 +12,11 @@ PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
 include $(INCLUDE_DIR)/package.mk
 
 define Package/wireless-regdb
-	PKGARCH:=all
-	SECTION:=firmware
-	CATEGORY:=Firmware
-	URL:=https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git/
-	TITLE:=Wireless Regulatory Database
+  PKGARCH:=all
+  SECTION:=firmware
+  CATEGORY:=Firmware
+  URL:=https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git/
+  TITLE:=Wireless Regulatory Database
 endef
 
 define Build/Compile