Add board support for the Nucleo64 L476RG development board.
Change-Id: Ibb5424bc936c67a5d96855617202136d7dea772c
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>