first of all, i am no developer, so do not except anything. i think i got lucky in some case.
here is my wpa_supplicant that works with EAP, MSCHAP2 Wpa Enterprise at my university.
i am using viewcomb at the moment, so i do not know if it works with vegacomb. but the possibility seems kind of high!
greets from germany
btw: this file has to replace the existing one in /system/bin
something like that:
adb shell mv /system/bin/wpa_supplicant /system/bin/wpa_supplicant.old
adb push wpa_supplicant /system/bin/
adb shell chmod 755 /system/bin/wpa_supplicant