poky.conf: use logic to edit WARN_QA and ERROR_QA

Instead of overriding WARN_QA and ERROR_QA, edit the defaults to remove specific
tests from WARN_QA and add them to ERROR_QA.

This should avoid tests being added to poky.conf but not insane.bbclass
(unknown-configure-option wasn't enabled in oe-core), or vice versa (infodir
wasn't enabled in Poky).

(From meta-yocto rev: 32f5014c871f5fd86262fb6a87b60360b1b21d07)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta-yocto/conf/distro/poky.conf

@@ -100,10 +100,8 @@ OELAYOUT_ABI = "10"
 INHERIT += "poky-sanity"
 
 # QA check settings - a little stricter than the OE-Core defaults
-WARN_QA = "textrel files-invalid incompatible-license xorg-driver-abi libdir \
-           unknown-configure-option build-deps file-rdeps"
-ERROR_QA = "dev-so debug-deps dev-deps debug-files arch pkgconfig la perms \
-            useless-rpaths rpaths staticdev ldflags pkgvarcheck already-stripped \
-            compile-host-path dep-cmp installed-vs-shipped install-host-path \
-            packages-list perm-config perm-line perm-link pkgv-undefined \
-            pn-overrides split-strip var-undefined version-going-backwards"
+WARN_TO_ERROR_QA = "already-stripped compile-host-path install-host-path \
+                    installed-vs-shipped ldflags pn-overrides rpaths staticdev \
+                    useless-rpaths"
+WARN_QA_remove = "${WARN_TO_ERROR_QA}"
+ERROR_QA_append = " ${WARN_TO_ERROR_QA}"