fel: Add A80 SoC ID

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
fel: Detect FEL mode bulk transfer endpoint addresses at startup

FEL mode on the A80 changed the bulk transfer endpoint.

Let the fel utility look for the endpoint addresses instead
of hard-coding them.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>