This commit adds a MRAA platform for the UP Squared board, EVT3 revision. It handles the relevant FPGA configuration updates when using MRAA to change pin modes or toggle GPIO directions. Signed-off-by: Javier Arteaga <javier@emutex.com> Signed-off-by: Nicola Lunghi <nicola.lunghi@emutex.com> Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>