php: bump version to 7.0.13

Release notes: http://php.net/ChangeLog-7.php#7.0.13

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/php/php.hash

@@ -1,2 +1,2 @@
 # From http://php.net/downloads.php
-sha256 f3d6c49e1c242e5995dec15e503fde996c327eb86cd7ec45c690e93c971b83ff  php-7.0.12.tar.xz
+sha256 357ba7f93975d7d836abed0852dc3ed96a988af539e87750613294cbee82f1bf  php-7.0.13.tar.xz

package/php/php.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PHP_VERSION = 7.0.12
+PHP_VERSION = 7.0.13
 PHP_SITE = http://www.php.net/distributions
 PHP_SOURCE = php-$(PHP_VERSION).tar.xz
 PHP_INSTALL_STAGING = YES