[hwasan] Add config for AArch64 Linux with 39-bit VA. (#170927)

This is leveraging work which has already been done for Android, which
ships 39-bit VA kernels, and extending it to other embedded Linux
targets.

(SANITIZER_AARCH64_39BIT_VA was added in 58c8f57681.)

GitOrigin-RevId: c3acafcda289ffa09f1bcae93221eaaf8fcffe79