tgt: fix typo in Makefile

net/tgt/Makefile

@@ -17,7 +17,7 @@ PKG_SOURCE_URL:=https://github.com/fujita/tgt.git
 PKG_SOURCE_VERSION:=$(PKG_REV)
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_REV).tar.gz
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_MAINTAIENR:=Maxim Storchak <m.storchak@gmail.com>
+PKG_MAINTAINER:=Maxim Storchak <m.storchak@gmail.com>
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_SOURCE_SUBDIR)