kbuild: make binrpm-pkg always produce kernel-devel package

The generation of the kernel-devel package is disabled for binrpm-pkg
presumably because it was quite big (>= 200MB) and took a long time to
package.

Commit fe66b5d2 ("kbuild: refactor kernel-devel RPM package and
linux-headers Deb package") reduced the package size to 12MB, and now
it is quick to build. It won't hurt to have binrpm-pkg generate it by
default.

If you want to skip the kernel-devel package generation, you can pass
RPMOPTS='--without devel':

  $ make binrpm-pkg RPMOPTS='--without devel'
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>

scripts/Makefile.package

@@ -94,8 +94,6 @@ rpm-pkg srcrpm-pkg binrpm-pkg: rpmbuild/SPECS/kernel.spec
 	$(if $(filter a b, $(build-type)), \
 		--target $(UTS_MACHINE)-linux --build-in-place --noprep --define='_smp_mflags %{nil}' \
 		$$(rpm -q rpm >/dev/null 2>&1 || echo --nodeps)) \
-	$(if $(filter b, $(build-type)), \
-		--without devel) \
 	$(RPMOPTS))
 
 # deb-pkg srcdeb-pkg bindeb-pkg