Fix missing cpio

./kernel/gen_kheaders.sh: line 77: cpio: command not found
make[1]: *** [kernel/Makefile:132: kernel/kheaders_data.tar.xz] Error 127
make: *** [Makefile:1071: kernel] Error 2
make: *** Waiting for unfinished jobs....

PKGBUILD

@@ -9,7 +9,7 @@ arch=('x86_64')
 license=('GPL2')
 url='http://www.kernel.org'
 options=('!strip' '!buildflags')
-makedepends=('glibc' 'libelf' 'kmod' 'git' 'make' 'gcc' 'bc' 'sed')
+makedepends=('glibc' 'libelf' 'kmod' 'git' 'make' 'gcc' 'bc' 'sed' 'cpio')
 depends=('linux-firmware' 'kernel-install-hook')
 install=linux-seblu.install
 _repourl='git+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git'