rpm-pkg: Always regenerate the specfile

The *pkg targets are always run, so it makes no sense to cache the
generated specfile. This also fixes build errors when the specfile
becomes out of date, without the Makefile noticing it:

$ make rpm
  works
$ echo yadadada >localversion-test
$ make rpm
  fails, because kernel.spec assumes the old kernel release string
Signed-off-by: Michal Marek <mmarek@suse.cz>

scripts/package/Makefile

@@ -35,10 +35,7 @@ MKSPEC     := $(srctree)/scripts/package/mkspec
 
 # rpm-pkg
 # ---------------------------------------------------------------------------
-$(objtree)/kernel.spec: $(MKSPEC) $(srctree)/Makefile
-	$(CONFIG_SHELL) $(MKSPEC) > $@
-
-rpm-pkg rpm: $(objtree)/kernel.spec FORCE
+rpm-pkg rpm: FORCE
 	@if test "$(objtree)" != "$(srctree)"; then \
 		echo "Building source + binary RPM is not possible outside the"; \
 		echo "kernel source tree. Don't set KBUILD_OUTPUT, or use the"; \
@@ -47,6 +44,7 @@ rpm-pkg rpm: $(objtree)/kernel.spec FORCE
 	fi
 	$(MAKE) clean
 	ln -sf $(srctree) $(KERNELPATH)
+	$(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
 	$(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --save-scmversion
 	tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(TAR_CONTENT)
 	rm $(KERNELPATH)
@@ -56,17 +54,13 @@ rpm-pkg rpm: $(objtree)/kernel.spec FORCE
 	set -e; \
 	mv -f $(objtree)/.tmp_version $(objtree)/.version
 	$(RPM) $(RPMOPTS) --target $(UTS_MACHINE) -ta $(KERNELPATH).tar.gz
-	rm $(KERNELPATH).tar.gz
-
-clean-files := $(objtree)/kernel.spec
+	rm $(KERNELPATH).tar.gz kernel.spec
 
 # binrpm-pkg
 # ---------------------------------------------------------------------------
-$(objtree)/binkernel.spec: $(MKSPEC) $(srctree)/Makefile
-	$(CONFIG_SHELL) $(MKSPEC) prebuilt > $@
-
-binrpm-pkg: $(objtree)/binkernel.spec FORCE
+binrpm-pkg: FORCE
 	$(MAKE) KBUILD_SRC=
+	$(CONFIG_SHELL) $(MKSPEC) prebuilt > $(objtree)/binkernel.spec
 	set -e; \
 	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
 	set -e; \
@@ -74,8 +68,7 @@ binrpm-pkg: $(objtree)/binkernel.spec FORCE
 
 	$(RPM) $(RPMOPTS) --define "_builddir $(objtree)" --target \
 		$(UTS_MACHINE) -bb $<
-
-clean-files += $(objtree)/binkernel.spec
+	rm binkernel.spec
 
 # Deb target
 # ---------------------------------------------------------------------------