staging: wfx: mark chip frozen on error indication

When the driver receive an error indication, it means the chip won't
answer to any command anymore. Therefore, mark the chip frozen when it
happens (as when the driver receive an exception indication).

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200427134031.323403-4-Jerome.Pouiller@silabs.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>