package/php: security bump to version 7.2.3

Fixes CVE 2018-7584: https://bugs.php.net/bug.php?id=75981

For details see release notes:
http://www.php.net/archive/2018.php#id2018-03-01-2

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/php/php.hash

@@ -1,5 +1,5 @@
 # From http://php.net/downloads.php
-sha256 47d7607d38a1d565fc43ea942c92229a7cd165f156737f210937e375b243cb11  php-7.2.2.tar.xz
+sha256 b3a94f1b562f413c0b96f54bc309706d83b29ac65d9b172bc7ed9fb40a5e651f  php-7.2.3.tar.xz
 
 # License file
 sha256 00e567a8d50359d93ee1f9afdd9511277660c1e70a0cbf3229f84403aa9aebb1  LICENSE

package/php/php.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PHP_VERSION = 7.2.2
+PHP_VERSION = 7.2.3
 PHP_SITE = http://www.php.net/distributions
 PHP_SOURCE = php-$(PHP_VERSION).tar.xz
 PHP_INSTALL_STAGING = YES