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mkinitfs: handle compressed kernel modules

When determining which firmware needs to be includes in the initramfs
mkinitfs searches for kernel modules using the filename *.ko and so
does not cater for compressed modules (and therefore does not include
their required firmware in the initramfs).

Change the search pattern to deal with both uncompressed and
compressed modules.

--- a/mkinitfs.in

+++ b/mkinitfs.in

@@ -138,9 +138,9 @@

 	rm -rf "$tmpdir"/lib/firmware

 	mkdir -p "$tmpdir"/lib/firmware

 	# Verify if there are initfs modules

-	_modules=`find "$tmpdir"/lib/modules -type f -name "*.ko" -print -quit`

+	_modules=`find "$tmpdir"/lib/modules -type f -name "*.ko*" -print -quit`

 	[ -n "$_modules" ] || return 0

-	find "$tmpdir"/lib/modules -type f -name "*.ko" | xargs modinfo -F firmware | sort -u | while read FW; do

+	find "$tmpdir"/lib/modules -type f -name "*.ko*" | xargs modinfo -F firmware | sort -u | while read FW; do

 		[ -e "${basedir}/lib/firmware/${FW}" ] && install -pD "${basedir}/lib/firmware/${FW}" "$tmpdir"/lib/firmware/$FW

 	done

 	return 0