cmd: rng: Print "Abort" on -EINTR

In the rng command, print
  Abort
instead of
  Reading RNG failed
if the error number is -EINTR, which can happen if the user pressed
CTRL-C.

Signed-off-by: Marek BehĂșn <kabel@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
1 file changed