arch: arm64: use symtab to print function name in stack trace

Selecting `CONFIG_SYMTAB` will
enable the symtab generation which will be used in the
stack trace to print the function name of the return
address.

Added `arm64` to the `arch.common.stack_unwind.symtab` test.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>