recipes: Replace "cp -a" with "cp -R --no-dereference --preserve=mode,links"

* Using "cp -a" leaks UID of user running the builds, causing
  many QA warnings.
* See this thread for details:
  http://lists.openembedded.org/pipermail/openembedded-core/2015-November/112904.html

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-webserver/recipes-php/phpmyadmin/phpmyadmin_4.5.0.2.bb

@@ -20,7 +20,7 @@ inherit allarch
 
 do_install() {
     install -d ${D}${datadir}/${BPN}
-    cp -a * ${D}${datadir}/${BPN}
+    cp -R --no-dereference --preserve=mode,links -v * ${D}${datadir}/${BPN}
     chown -R root:root ${D}${datadir}/${BPN}
     # Don't install patches to target
     rm -rf ${D}${datadir}/${BPN}/patches