kbuild: rpm-pkg: install vmlinux.bz2 unconditionally

This conditional was added by commit fc370ecf ("kbuild: add
vmlinux to kernel rpm").  Its git-log mentioned vmlinux.bz2 was
necessary for debugging, but did not explain why ppc64 was an
exception.  I see no problem to copy vmlinux.bz2 all the time.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

scripts/package/mkspec

@@ -99,11 +99,8 @@ echo 'make %{?_smp_mflags} INSTALL_HDR_PATH=$RPM_BUILD_ROOT/usr KBUILD_SRC= head
 echo 'cp System.map $RPM_BUILD_ROOT'"/boot/System.map-$KERNELRELEASE"
 
 echo 'cp .config $RPM_BUILD_ROOT'"/boot/config-$KERNELRELEASE"
-
-echo "%ifnarch ppc64"
 echo 'bzip2 -9 --keep vmlinux'
 echo 'mv vmlinux.bz2 $RPM_BUILD_ROOT'"/boot/vmlinux-$KERNELRELEASE.bz2"
-echo "%endif"
 
 if ! $PREBUILT; then
 echo 'rm -f $RPM_BUILD_ROOT'"/lib/modules/$KERNELRELEASE/build"