Add PKG_LICENSE tags for luci-app-sqm and sqm-scripts.

net/luci-app-sqm/Makefile

@@ -10,6 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=luci-app-sqm
 PKG_VERSION:=3
 PKG_RELEASE:=1
+PKG_LICENSE:=GPLv2
 LUCI_DIR:=/usr/lib/lua/luci
 
 include $(INCLUDE_DIR)/package.mk

net/sqm-scripts/Makefile

@@ -10,6 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=sqm-scripts
 PKG_VERSION:=6
 PKG_RELEASE:=1
+PKG_LICENSE:=GPLv2
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)