Add arm64 support tools #2193

Job	Run time
build / Build	6m 56s
Integration Tests (certrotation)	2m 24s
Integration Tests (etcdrestore)	2m 41s
Integration Tests (localstorage)	2m 15s
Integration Tests (startup)	7m 56s
Integration Tests (custometcdargs)	1m 25s
Integration Tests (etcdsnapshot)	8m 51s
Integration Tests (kubeflags)	7m 23s
Integration Tests (longhorn)	3m 59s
Integration Tests (secretsencryption)	2m 40s
Integration Tests (flannelnone)	2m 5s
	48m 35s

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