usb: dwc3: pci: Set "linux,phy_charger_detect" property on some Bay Trail boards

usb: dwc3: pci: Set "linux,phy_charger_detect" property on some Bay Trail boards

Some Android x86 tablets with a Bay Trail (BYT) SoC and a Crystal Cove
PMIC, which does not support charger-detection, rely on the TUSB1211 phy
for charger-detection.

Windows tablets with the same SoC + PMIC often use an extra chip for
charger-detection like the FSA831A. But since on Android tablets
the designers already need to add a TUSB1211 phy to support device/gadget
mode the phy is used to do charger-detection instead.

These Android x86 tablets can be identified by the unique combination of
a Bay Trail SoC (already checked for by PCI-ids) + a Crystal Cove PMIC +
not using the standard ACPI battery and ac drivers. Where as on Windows
tablets the standard ACPI battery and ac drivers will be used on BYT
boards with a Crystal Cove PMIC.

Set a special kernel-internal (so not part of the dt-bindings)
"linux,phy_charger_detect" property on these boards, which tells the
tusb1210 driver to enable charger-detection.

Signed-off-by: Hans de Goede <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>