Add 27W USB-C Power Supply

[andrum993]

Per https://www.raspberrypi.com/documentation/computers/configuration.html#common-bootloader-properties-chosenbootloader.

See also raspberrypi/documentation#3267.

andrew@bookworm5:~ $ od -x  --endian=big /proc/device-tree/chosen/power/rpi_power_supply
0000000 0000 2e8a 000f 0000
0000010

Thanks to trejan on the forum: https://forums.raspberrypi.com/viewtopic.php?p=2154632#p2154394.

[lurch]

For the benefit of anybody else seeing this closed PR - raspberrypi/documentation#3267 says "The first word is the VID, but the second word isn't a PID - it's a Product VDO."