feat(qemu): increase size of bl31

Increases the SRAM to a full 1MB and also increase BL31 size to have
room to spare for debugging.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Change-Id: I584f9d409a1f653a3dfc7cf2b95706ada367c70e
1 file changed