mfd: tps65219: Add support for TI TPS65215 PMIC

Use chip ID and chip_data struct to differentiate between devices in
probe(). Add TPS65215 resource information. Update descriptions and
copyright information to reflect the driver supports 2 PMIC devices.

Signed-off-by: Shree Ramamoorthy <s-ramamoorthy@ti.com>
Link: https://lore.kernel.org/r/20250206173725.386720-5-s-ramamoorthy@ti.com


Signed-off-by: Lee Jones <lee@kernel.org>