esp.c: move write_response() non-DMA logic to esp_do_nodma()

esp.c: move write_response() non-DMA logic to esp_do_nodma()

This moves the remaining non-DMA STATUS and MESSAGE IN phase logic from
write_response() to esp_do_nodma(). Note that we can also now drop the extra
fifo_reset() which is no longer required.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240112125420.514425-69-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>