[Ada] Mark standard containers as not in SPARK

[Ada] Mark standard containers as not in SPARK

gcc/ada/

	* libgnat/a-cbdlli.adb, libgnat/a-cbdlli.ads,
	libgnat/a-cbhama.adb, libgnat/a-cbhama.ads,
	libgnat/a-cbhase.adb, libgnat/a-cbhase.ads,
	libgnat/a-cbmutr.adb, libgnat/a-cbmutr.ads,
	libgnat/a-cborma.adb, libgnat/a-cborma.ads,
	libgnat/a-cborse.adb, libgnat/a-cborse.ads,
	libgnat/a-cbprqu.adb, libgnat/a-cbprqu.ads,
	libgnat/a-cbsyqu.adb, libgnat/a-cbsyqu.ads,
	libgnat/a-cdlili.adb, libgnat/a-cdlili.ads,
	libgnat/a-cidlli.adb, libgnat/a-cidlli.ads,
	libgnat/a-cihama.adb, libgnat/a-cihama.ads,
	libgnat/a-cihase.adb, libgnat/a-cihase.ads,
	libgnat/a-cimutr.adb, libgnat/a-cimutr.ads,
	libgnat/a-ciorma.adb, libgnat/a-ciorma.ads,
	libgnat/a-ciormu.adb, libgnat/a-ciormu.ads,
	libgnat/a-ciorse.adb, libgnat/a-ciorse.ads,
	libgnat/a-cohama.adb, libgnat/a-cohama.ads,
	libgnat/a-cohase.adb, libgnat/a-cohase.ads,
	libgnat/a-coinve.adb, libgnat/a-coinve.ads,
	libgnat/a-comutr.adb, libgnat/a-comutr.ads,
	libgnat/a-convec.adb, libgnat/a-convec.ads,
	libgnat/a-coorma.adb, libgnat/a-coorma.ads,
	libgnat/a-coormu.adb, libgnat/a-coormu.ads,
	libgnat/a-coorse.adb, libgnat/a-coorse.ads: Add SPARK_Mode =>
	Off.