Add grub as deps for kernel-install-grub

PKGBUILD

@@ -47,7 +47,7 @@ package_kernel-install-compat() {
 
 package_kernel-install-grub() {
   pkgdesc='kernel-install script to regen grub config'
-  depends=('kernel-install-compat')
+  depends=('grub' 'kernel-install-compat')
 
   install -Dm755 95-grub-update.install \
     "$pkgdir/usr/lib/kernel/install.d/95-grub-update.install"