dtc: update to 1.6.1

Fixes compilation with GCC11.

Reorganized Makefile variables for consistency between packages.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/dtc/Makefile

@@ -8,19 +8,21 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=dtc
-PKG_VERSION:=1.6.0
-PKG_RELEASE:=1
+PKG_VERSION:=1.6.1
+PKG_RELEASE:=$(AUTORELEASE)
+
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_HASH:=10503b0217e1b07933e29e8d347a00015b2431bea5f59afe0bed3af30340c82d
+PKG_HASH:=65cec529893659a49a89740bb362f507a3b94fc8cd791e76a8d6a2b6f3203473
 PKG_SOURCE_URL:=@KERNEL/software/utils/dtc
-PKG_LICENSE:=GPL-2.0
+
+PKG_MAINTAINER:=Yousong Zhou <yszhou4tech@gmail.com>
+PKG_LICENSE:=GPL-2.0-only
 PKG_LICENSE_FILES:=GPL
+
 PKG_INSTALL:=1
-PKG_MAINTAINER:=Yousong Zhou <yszhou4tech@gmail.com>
 
 include $(INCLUDE_DIR)/package.mk
 
-
 define Package/dtc
   SECTION:=utils
   CATEGORY:=Utilities