Drop our delta in 85-initrd.install

Signed-off-by: Dylan Aïssi <dylan.aissi@collabora.com>

debian/extra/kernel-install.d/85-initrd.install

@@ -10,7 +10,7 @@ INITRD_SRC="/boot/initrd.img-$KERNEL_VERSION"
 
 [ "$COMMAND" = add ] || exit 0
 
-if [ "$#" -gt 5 ]; then
+if [ "$#" -ge 5 ]; then
     # Explicit initrd paths were passed, fall through to default 90-loaderentry.install handling;
     # we'd be either injecting an unwanted image or, worse, overriding a user-provided one
     exit 0