Supplicant now passes as an ascii encoded string that allows it to
pass any sequence of bytes for a SSID. see src/utils/common.c in supplicant
for details of the implementation.
We create a SSID structure WifiSsid in framework to store the ssid and handle
the conversion appropriately when required for printing and for an application.
At this point, we still do not handle non-printable octets from an application perspective
for connectivity
Bug: 7110903
Change-Id: I520e5ee23baed4867b8b408bbb3eda5c9e92b6bf
b6deeed3ce