spi: Make 'default_spi_send_multicommand' the default unless defined

A NULL func pointer is necessary and sufficient for the
condition `NULL func pointer => default_spi_send_multicommand' as to not
need this explicit specification of 'default'.

Therefore drop the explicit need to specify the
'default_spi_send_multicommand' callback function pointer in the
spi_master struct. This is a reasonable default for every other driver
in the tree with only a few exceptions.

This simplifies the code and driver development.

Change-Id: I6cc24bf982da3d5251d391eb397db43dd10280e8
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/67481
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Thomas Heijligen <src@posteo.de>

0 files changed, 0 insertions, 0 deletions