luafilesystem swupdate-lualoader: WORKDIR -> UNPACKDIR fix

Signed-off-by: Geoff Parker <geoffrey.parker@arthrex.com>

recipes-lua/swupdate-lualoader/swupdate-lualoader_1.0.bb

@@ -2,7 +2,7 @@ SUMMARY = "Loader for swupdate"
 LICENSE = "MIT"
 SECTION = "devel/lua"
 DEPENDS = "lua"
-LIC_FILES_CHKSUM = "file://${WORKDIR}/swupdate_handlers.lua;md5=354cf4af377edd962d2e8d78085d3ed7;beginline=1;endline=19"
+LIC_FILES_CHKSUM = "file://${UNPACKDIR}/swupdate_handlers.lua;md5=354cf4af377edd962d2e8d78085d3ed7;beginline=1;endline=19"
 
 SRC_URI = "file://swupdate_handlers.lua"
 
@@ -10,7 +10,7 @@ inherit pkgconfig
 
 do_install() {
     LUAVER=$(pkg-config --modversion lua | grep -o '^[0-9]\+\.[0-9]\+')
-    install -D -m 0644 ${WORKDIR}/swupdate_handlers.lua ${D}${libdir}/lua/$LUAVER/swupdate_handlers.lua
+    install -D -m 0644 ${UNPACKDIR}/swupdate_handlers.lua ${D}${libdir}/lua/$LUAVER/swupdate_handlers.lua
     sed -e 's,@libdir@,${libdir},g' \
         -i ${D}${libdir}/lua/$LUAVER/swupdate_handlers.lua