UPSTREAM: intel/common/block/i2c: Fix clock programming of i2c

When configuring i2c frequency to I2C_SPEED_FAST_PLUS, observed frequency
was I2C_SPEED_FAST.

This was due to incorrect register programming.

TEST= Build for Soraka, I2C frequency during firmware execution was
I2C_SPEED_FAST_PLUS when configured for I2C_SPEED_FAST_PLUS.

Change-Id: I652d2e84b074b73d98e93ebd204beab4fe70ecdf
Signed-off-by: Patrick Georgi <[email protected]>
Original-Commit-Id: 14deaeec6177cea2829dff977ea67d74ed4aca19
Original-Change-Id: Ib0e08afe0e1b6d8c9961d5e3039b07ada9d30aa3
Original-Signed-off-by: Naresh G Solanki <[email protected]>
Original-Reviewed-on: https://review.coreboot.org/20646
Original-Tested-by: build bot (Jenkins) <[email protected]>
Original-Reviewed-by: Aaron Durbin <[email protected]>
Original-Reviewed-by: Furquan Shaikh <[email protected]>
Reviewed-on: https://chromium-review.googlesource.com/578904
Commit-Ready: Patrick Georgi <[email protected]>
Tested-by: Patrick Georgi <[email protected]>
Reviewed-by: Patrick Georgi <[email protected]>
1 file changed