Update php package to 5.2.11

Security Enhancements and Fixes in PHP 5.2.11:

   * Fixed certificate validation inside php_openssl_apply_verification_policy
   * Fixed sanity check for the color index in imagecolortransparent()
   * Added missing sanity checks around exif processing
   * Fixed bug #44683 (popen crashes when an invalid mode is passed)

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>