mb/google/zork: update USB 2.0 controller Lane Parameter for morphius

Enhance USB 2.0 SI by increasing the level of "HS DC Voltage Level"
and "Disconnect Threshold Adjustment".
COMPDISTUNE0: 0x3->0x7
TXVREFTUNE0: 0x6->0xf

BUG=b:162614573
BRANCH=zork
TEST=1. emerge-zork coreboot
     2. check U2 registers are set correctly
     3. test with servo v4 type-c, it's working expectedly.
     4. U2 SI pass

Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Change-Id: I278cc0aaddbc9fce595bf57ca69ee8abfc9f5659
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46537
Reviewed-by: Rob Barnes <robbarnes@google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions