board: amarula: vyasa: Give raw space for falcon mode

board: amarula: vyasa: Give raw space for falcon mode

RK3288 Vyasa board support falcon mode in U-Boot and SD layout start from
16MB offset for args and 17MB for uImage. So give full u-boot partition
space as 30M so-that it can occupy bigger uImage file and doesn't overlap
rootfs partition.

[Peter: use # as comment character, clarify comment wording]
Reported-by: Shyam Saini <shyam@amarulasolutions.com>
Tested-by: Shyam Saini <shyam@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Shyam saini <shyam@amarulasolutions.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>