I2C decoder path and slave address

The video capture API includes constants for specifying the path and slave address for an I2C decoder.

The following specify the I2C decoder path and slave address:

CAPTURE_PROPERTY( 'Q', 'D', 'I', 'P' )
Read/Write const char *
Device path of the I2C decoder (e.g. /dev/i2c0).
CAPTURE_PROPERTY( 'Q', 'D', 'I', 'A' )
Read/Write uint32_t
Slave address of the I2C decoder.