[wpa] Add support for hostapd/wpa_supplicant when WITHOUT_CRYPT=YES is enabled.

[adrian]

Summary

This builds wpa_supplicant / hostpad using internal encryption routines
rather than using libcrypt.

This has been supported in wpa for years now, however since we use
local makefiles for this, we bitrotted dependencies and configuration
options.

[emaste]

share/mk/src.opts.mk

432

We should probably add a comment here about our general approach; ideally we'd be able to either build dependencies w/o crypto support (if that makes sense for that component) or do something like wpa does.

[adrian]

(I haven't forgotten about this; I only just got mips32 to boot again...)