Fix early exit condition in phpize.bat (#19886)

Author: shivammathur

win32/build/phpize.bat

@@ -1,7 +1,7 @@
 @echo off
 SET PHP_BUILDCONF_PATH=%~dp0
 cscript /nologo /e:jscript %PHP_BUILDCONF_PATH%\script\phpize.js %*
-IF ERRORLEVEL 0 exit /b 3
+IF %ERRORLEVEL% NEQ 0 exit /b 3
 IF NOT EXIST configure.bat (
 	echo Error generating configure script, configure script was not copied
 	exit /b 3