Setup i2c configuration and commands for WaRP

Signed-off-by: Jacob Postman <jacob@revolution-robotics.com>
WaRP: PMIC push button manual reset timer set to 2s

Signed-off-by: Jacob Postman <jacob@revolution-robotics.com>
WaRP: Added config for fuse commands

Signed-off-by: Diego Rondini <diego.rondini@kynetics.it>
Added bmode support to WaRP for booting from eMMC

Added bmode boot_mode array to configure WaRP for booting from eMMC via
emmc or sd interface.

Signed-off-by: Jacob Postman <jacob@revolution-robotics.com>
Bit-bang WaRP I2C Interface FXOS8700 config

Added a bit-banged interface as a workaround to configure the FXOS8700
accelerometer on WaRP into the correct mode of operation. FXOS8700 is
coming up in I2C mode by default in the initial WaRP board revision
instead of the intended SPI mode.

Signed-off-by: Jacob Postman <jacob@revolution-robotics.com>