i2c-designware-pci: Add Haswell ULT device IDs

From: Duncan Laurie <dlaurie@chromium.org>

Add the necessary PCI Device IDs to use the Haswell ULT
I2C controller in PCI mode.

Set the bus numbers to -1 so it will use dynamic assignment
rather than hardcoded.

Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
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v2: Changed Haswell bus_clk to 100Mhz, thanks Mika Westerberg.
v1: Initial