Input: Add tps65219 interrupt driven powerbutton

TPS65219 has different interrupts compared to other TPS6521* chips.
TPS65219 defines two interrupts for the powerbutton one for push and one
for release.

This driver is very simple in that it maps the push interrupt to a key
input and the release interrupt to a key release.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20221104152311.1098603-6-jneanne@baylibre.com