Intel PXA2XX I2C Slave comms support

configname: CONFIG_I2C_PXA_SLAVE

Linux Kernel Configuration
└─>Device Drivers
└─>I2C support
└─>I2C Hardware Bus support
└─>Intel PXA2XX I2C Slave comms support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Support I2C slave mode communications on the PXA I2C bus. This
is necessary for systems where the PXA may be a target on the
I2C bus.