soc/amd/stoneyridge: Move I2C bus clear out of gpio.c
Relocate the I2C bus reset code from gpio.c to i2c.c. When it first
went in, gpio.c was a natural location due to the nature of the
algorithm. This is preparation for moving most of gpio.c to common
code.
Change-Id: I3b2d8e1b54e7c5929220d763bd99fe01b0636aaa
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32650
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>