php7: redux of fix for issue #5488

Upstream was a little premature on asking for a change and not
vetting it.  Here is the currently proposed fix.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

lang/php7/Makefile

@@ -7,7 +7,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=php
 PKG_VERSION:=7.2.1
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_MAINTAINER:=Michael Heimpold <mhei@heimpold.de>