The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
hang() only outputs 'reset the board' whereas panic
can be passed a string which we can use to output
some more information what is happening.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>