[PATCH] Make target_wait options use enum flags

[Tom Tromey]

>>>>> "Kamil" == Kamil Rytarowski <kamil@netbsd.org> writes:

>> Here's the updated patch.
>> 
>> Kamil, could you check the NetBSD changes?

Kamil> I've checked this patch (on top of "6e25f88828f (upstream/master) bpf:
Kamil> xBPF SDIV, SMOD instructions") and the NetBSD gdbserver still works.

Thank you.  I'm going to check this in soon.

As before, it's possible this breaks some target that I can't build.
If this happens, send me the errors and I will correct them.

Tom