fix wpa_supplicant2.mk file so it actually links libnb correctly
update to dropbear 2012.55, enable blowfish
Fix to m3 defconfig, gphotos.mk and wpa_supplicant2.mk

Cleanup error I introduced in defconfig, as well as clean up
things I messed up in gphotos.mk and wpa_supplicant2.mk

M3 defconfig now incluced ptp support enabled by default.