dt-bindings: regulator: Add ROHM BD96802 PMIC

dt-bindings: regulator: Add ROHM BD96802 PMIC

BD96802Qxx-C is an automotive grade configurable Power Management
Integrated Circuit supporting Functional Safety features for application
processors, SoCs and FPGAs. BD96802 is controlled via I2C, provides two
interrupt lines and has two controllable buck regulators.

The BD96802 belongs to the family of ROHM Scalable PMICs and is intended
to be used as a companion PMIC for the BD96801.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/df7983e7c623041f14a4fbe409a2cff846e68a05.1744090658.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>