Fix syscall test build error on arm64.
Fix syscall test build error on arm64.

The error was introduced in the merge of PR #1471.
Some codes are missing when adding bazel select_arch
command to the test/syscall/linux/BUILD file.

Signed-off-by: Haibo Xu <890442fe2c67f8ba5d7513964ecf02b207200efa@arm.com>
Change-Id: I8cae3f4ae78c2e14671f3ac6e7361dc2806d9305

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor