Exclude autotest for INTEGRITY

- ICU is not supported by backend.
  System supports only a simple named UTC time zone implementation(see QUtcTimeZonePrivate)

Task-number: QTBUG-99123
Pick-to: 6.2 6.3
Change-Id: I4a87fc3d5484d75d55890bf88d012955e5048a0b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

tests/auto/corelib/time/CMakeLists.txt

@@ -5,6 +5,6 @@ add_subdirectory(qdate)
 add_subdirectory(qdatetime)
 add_subdirectory(qdatetimeparser)
 add_subdirectory(qtime)
-if(QT_FEATURE_timezone)
+if(QT_FEATURE_timezone AND NOT INTEGRITY)
     add_subdirectory(qtimezone)
 endif()