dt-bindings: eeprom-93xx46: Convert to json schema

Convert eeprom-93xx46 binding documentation from txt to yaml format

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Link: https://lore.kernel.org/r/20210818105626.31800-1-a-govindraju@ti.com


Signed-off-by: Rob Herring <robh@kernel.org>