ovmf-shell-image: move .wks file to its own directory

If it's in ovmf/, devtool thinks it belongs to the ovmf recipe
and then deletes the file as it is not referred to by that recipe
anywhere.

(From OE-Core rev: 47ff80080f336098c962281675026901978a09bc)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/ovmf/ovmf-shell-image.bb

@@ -6,7 +6,7 @@ COMPATIBLE_HOST:class-target = '(i.86|x86_64).*'
 # boot loader and no rootfs partition, not additional
 # tools are needed for this .wks file.
 IMAGE_FSTYPES:forcevariable = 'wic'
-WKS_FILE = "ovmf/ovmf-shell-image.wks"
+WKS_FILE = "ovmf-shell-image/ovmf-shell-image.wks"
 WKS_FILE_DEPENDS = ""
 
 inherit image