recipes: pre/post actions

A number of the recipes did not properly label their pre and post
actions, causing the actions to occur in all split packages.  This
was corrected by defaulting to _${PN} in most cases.

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>

meta/recipes-extended/sudo/sudo.inc

@@ -23,7 +23,7 @@ do_configure_prepend () {
 	fi
 }
 
-pkg_postinst() {
+pkg_postinst_${PN} () {
 	if [ "x$D" != "x" ]; then
 		exit 1
 	fi