fbset-modes: fix a warning about not existant S

From: Chunrong Guo <[email protected]>

Set the S variable to $WORKDIR to remove the warning about S being not
existant

---
 meta-oe/recipes-support/fbset/fbset-modes.bb | 1 +
 1 file changed, 1 insertion(+)

index 1310e6f..88f7a4f 100644
@@ -6,6 +6,7 @@ PV = "0.1.0"
 PR = "r6"
 
 SRC_URI = "file://fb.modes"
+S = "${WORKDIR}"
 
 do_install() {
     install -d ${D}${sysconfdir}

1.9.2