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-graphics/ttf-fonts/liberation-fonts_1.04.bb

@@ -32,7 +32,7 @@ do_install () {
 	install -m 0644 License.txt ${D}${datadir}/doc/${PN}/
 }
 
-pkg_postinst () {
+pkg_postinst_${PN} () {
 #!/bin/sh
 fc-cache
 }

meta/recipes-graphics/ttf-fonts/liberation-fonts_1.06.bb

@@ -33,7 +33,7 @@ do_install () {
 	install -m 0644 License.txt ${D}${datadir}/doc/${PN}/
 }
 
-pkg_postinst () {
+pkg_postinst_${PN} () {
 #!/bin/sh
 fc-cache
 }

meta/recipes-graphics/ttf-fonts/ttf-bitstream-vera_1.10.bb

@@ -31,7 +31,7 @@ do_install () {
         done 
 } 
 
-pkg_postinst () {
+pkg_postinst_${PN} () {
 #!/bin/sh
 fc-cache
 }