Convert to new override syntax

This is the result of automated script (0.9.1) conversion:

oe-core/scripts/contrib/convert-overrides.py .

converting the metadata to use ":" as the override character instead of "_".

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-initramfs/recipes-core/initrdscripts/initramfs-debug_1.0.bb

@@ -11,4 +11,4 @@ do_install() {
 
 inherit allarch
 
-FILES_${PN} += " /init "
+FILES:${PN} += " /init "