Hackishly port szym's ad-hoc patch to work with my Xoom.

Hackishly port szym's ad-hoc patch to work with my Xoom.

Taken from [1], I got rid of all of the #ifdefs to keep it clean; the (*)
prefix hack that he uses bugs up the UI a bit; you will see three entries
for your ad-hoc wireless point (and none of them will say remembered), but
at least it works until Google decides to add ad-hoc support.

[1]http://szym.net/android/adhoc-wpa-supp.html

Change-Id: I3f1845fa4a83b38348f0f07c63712962e26db1b6
Signed-off-by: Kelvie Wong <kelvie@ieee.org>