insane.bbclass: Report all invalid PACKAGECONFIGs for a recipe at once

Rather than reporting each invalid PACKAGECONFIG with a separate error
message, report them all with one error message.

(From OE-Core rev: bf9366583f53fe2498d7aa9192ebfe6562887cf3)

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes-global/insane.bbclass

@@ -1469,10 +1469,10 @@ python do_recipe_qa() {
         pkgconfigs = (d.getVar("PACKAGECONFIG") or "").split()
         if pkgconfigs:
             pkgconfigflags = d.getVarFlags("PACKAGECONFIG") or {}
-            for pkgconfig in pkgconfigs:
-                if pkgconfig not in pkgconfigflags:
-                    error_msg = "%s: invalid PACKAGECONFIG: %s" % (pn, pkgconfig)
-                    oe.qa.handle_error("invalid-packageconfig", error_msg, d)
+            invalid_pkgconfigs = set(pkgconfigs) - set(pkgconfigflags)
+            if invalid_pkgconfigs:
+                error_msg = "%s: invalid PACKAGECONFIG(s): %s" % (pn, " ".join(sorted(invalid_pkgconfigs)))
+                oe.qa.handle_error("invalid-packageconfig", error_msg, d)
 
     pn = d.getVar('PN')
     test_missing_metadata(pn, d)