php: check for existance of directory before 'rmdir' in do_install_append_class-target

Signed-off-by: Derek Straka <derek@asterius.io>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
(cherry picked from commit 7744e5992c)
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-oe/recipes-devtools/php/php.inc

@@ -166,7 +166,9 @@ do_install_append_class-target() {
 
     TMP=`dirname ${D}/${TMPDIR}`
     while test ${TMP} != ${D}; do
-        rmdir ${TMP}
+        if [ -d ${TMP} ]; then
+            rmdir ${TMP}
+        fi
         TMP=`dirname ${TMP}`;
     done