kbuild: deb-pkg: fix binary-arch and clean in debian/rules

The clean target needs ARCH=${ARCH} to clean up the tree for the correct
architecture. 'make (bin)deb-pkg' skips cleaning, but the preclean hook
may be executed if dpkg-buildpackage is directly used.

The binary-arch target does not need KERNELRELEASE because it is not
updated during the installation. KBUILD_BUILD_VERSION is not needed
either because binary-arch does not build vmlinux.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

scripts/package/mkdebian

@@ -251,12 +251,10 @@ build: build-arch
 
 binary-indep:
 binary-arch: build-arch
-	\$(MAKE) KERNELRELEASE=${version} ARCH=${ARCH} \
-	KBUILD_BUILD_VERSION=${revision} -f \$(srctree)/Makefile intdeb-pkg
-
+	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} intdeb-pkg
 clean:
 	rm -rf debian/files debian/linux-*
-	\$(MAKE) clean
+	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} clean
 
 binary: binary-arch
 EOF