If the sn5s330 PPC is being used to detect VBUS presence
(CONFIG_USB_PD_VBUS_DETECT_PPC), then enable interrupts and call
usb_charger_vbus_change when VBUS_GOOD changes.
BUG=b:72007153,b:72007492
BRANCH=none
TEST=Connect 3A and 1A USB-A chargers to each of Grunt's USB-C ports,
check that BC1.2 detection is working:
With 1A:
> chgsup
port=0/1, type=7, cur=500mA, vtg=5000mV, lsm=1
With 3A:
> chgsup
port=0/1, type=7, cur=2400mA, vtg=5000mV, lsm=1
TEST=Boot Grunt to OS, then connect USB2 mouse or USB3 flash drive to each
of Grunt's USB-C ports. Devices do not work due to b:71772180, but gpioget
shows EC is setting USB_C0/1_BC12_VBUS_ON_L correctly.
Change-Id: Iffc352105a321997adb364b9fbb8bafef248c224
Signed-off-by: Edward Hill <ecgh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/887938
Reviewed-by: Jett Rink <jettrink@chromium.org>