soc/amd/stoneyridge: Use new common SPI code

Use the new SPI code from common folder, delete spi.c. SPI related macros
must be single defined, in southbridge.h if they are used by files other
than the common SPI code, fch_spi.h if they are only used by the common
SPI code. The only exception is SPI_FIFO_DEPTH which must be in southbridge.h,
because it can change between SOC.

BUG=b:136595978
TEST=Build and boot grunt using new SPI code, with debug enabled. Check
output.

Change-Id: I639973d993316a10daa7564462e689b2c183f536
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35019
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>

0 files changed, 0 insertions, 0 deletions