Add mp5926 driver in hwmon and add dt-binding for it.

Change log:

v1 -> v2:
  - Corrected dt-bindings description.
  - Corrected Kconfig description.
  - Removed useless comment and code.
  - Corrected the alignment.
v1:
  - Add mp5926 driver in hwmon and add dt-binding for it.

---
Yuxi Wang (2):
  dt-bindings: hwmon: Add mps mp5926 driver bindings
  hwmon: add mp5926 driver

 .../devicetree/bindings/trivial-devices.yaml  |   2 +
 Documentation/hwmon/index.rst                 |   1 +
 Documentation/hwmon/mp5926.rst                |  92 +++++++++
 MAINTAINERS                                   |   7 +
 drivers/hwmon/pmbus/Kconfig                   |   9 +
 drivers/hwmon/pmbus/Makefile                  |   1 +
 drivers/hwmon/pmbus/mp5926.c                  | 190 ++++++++++++++++++
 7 files changed, 302 insertions(+)
 create mode 100644 Documentation/hwmon/mp5926.rst
 create mode 100644 drivers/hwmon/pmbus/mp5926.c

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2.39.2