The SPI initialization interrupt needs to be generated only when there
was actual data received while CS was asserted and after transaction
finished (i.e. CS is de-asserted).
BRANCH=cr50
BUG=b:35774896
TEST=verified on a bob with updated AP firmware
Change-Id: Ifc4b11870d511d47e9607a2001d845ee1e153f7f
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/452792
Reviewed-by: Mary Ruthven <mruthven@chromium.org>