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This adds power supply types for USB chargers defined in
the USB Type-C Specification 1.1 and in the
USB Power Delivery Specification Revision 2.0 V1.1.

The following are added :
POWER_SUPPLY_TYPE_USB_TYPE_C,	/* Type C Port */
POWER_SUPPLY_TYPE_USB_PD,	/* Power Delivery Port */
POWER_SUPPLY_TYPE_USB_PD_DRP,	/* PD Dual Role Port */
Signed-off-by: Benson Leung <bleung@chromium.org>
[tomeu: remove the mention to Type C from the comments]
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>