Added I2C SMBus driver and device tree bindings documentation.

Changes since v3:

* Driver source code:

	- bug fix for the mlx_slave_enable routine.

Khalil Blaiech (2):
  i2c: i2c-mlx: I2C SMBus driver for Mellanox BlueField SoC
  dt-bindings: i2c: I2C binding for Mellanox BlueField SoC

 .../devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt |   29 +
 drivers/i2c/busses/Kconfig                         |   13 +
 drivers/i2c/busses/Makefile                        |    1 +
 drivers/i2c/busses/i2c-mlx.c                       | 2513 ++++++++++++++++++++
 4 files changed, 2556 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt
 create mode 100644 drivers/i2c/busses/i2c-mlx.c

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2.1.2