Enable LTO for some boards that were tested by people on U-Boot Mailing
List.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Adam Ford <aford173@gmail.com>
Tested-by: Pali Rohár <pali@kernel.org>
Tested-by: Tim Harvey <tharvey@gateworks.com>
There is a second lpddr configuration with 2GB of RAM, but this requires
different RAM timings, so in addition to adding the timing file, a
separate defconfig is necessary.
Signed-off-by: Adam Ford <aford173@gmail.com>