lang/php7: Don't run phpize7 with QUILT

Allows targets such as prepare, refresh, or update to be run without
building dependencies for easier patch maintenance.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>

lang/php7/pecl.mk

@@ -13,7 +13,7 @@ endef
 
 define Build/Prepare
 	$(Build/Prepare/Default)
-	( cd $(PKG_BUILD_DIR); $(STAGING_DIR)/usr/bin/phpize7 )
+	$(if $(QUILT),,( cd $(PKG_BUILD_DIR); $(STAGING_DIR)/usr/bin/phpize7 ))
 endef
 
 CONFIGURE_VARS+= \