The touchpad and touch-panel CLK frequency should be smaller
than 400 kHz which described in spec.
Overwrite i2c speed parameters by overridetree.cb
BUG=b:119540449
BRANCH=master
TEST=emerge-octopus coreboot chromeos-bootimage
flash bios and check the touchpad i2c frequency meets the spec.
Change-Id: I32c3e1bbfc2cdf39e9b7865a69996e54346d5f93
Signed-off-by: Carl Yang <carl_yang@asus.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/29694
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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