meta-multimedia-image-ptest: Add images to enable BBCLASSEXTEND parallel execution

In line with other layers like meta-oe, meta-python add capability to
run recipe ptests

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-multimedia/conf/include/ptest-packagelists-meta-multimedia.inc

@@ -0,0 +1,17 @@
+#
+# Lists of the ptest in meta-multimedia, sorted into two sets by the time they take
+# Please keep these sorted in alphabetical order
+#
+# A first pass at getting all meta-multimedia recipes which inherit ptest
+# meta_multimedia_ptest_recipes=$(bitbake-layers show-recipes --recipes-only --layer meta-multimedia --inherits ptest --bare | sed -e '1,/=== Matching recipes: ===/d')
+# ptests which take less than ~30s each
+
+PTESTS_FAST_META_MULTIMEDIA = "\
+"
+
+PTESTS_SLOW_META_MULTIMEDIA = "\
+"
+
+PTESTS_PROBLEMS_META_MULTIMEDIA = "\
+    libopenmpt \
+"