qemu/qemu_sbsa: topology is different from qemu so add handling

sbsa-ref in QEMU creates clusers of 8 cores, it may create up to 512
cores in upto 64 clusters. Implement a qemu_sbsa specific topology file
and increase the BL31_SIZE to accommodate the bigger table sizes. Change
platform_def.h for new topology. Correct PLATFORM_CPU_PER_CLUSTER_SHIFT so
plat_helpers.S calculates correct result.

Signed-off-by: Graeme Gregory <graeme@nuviainc.com>
Change-Id: Idc5d70394c0956b759ad2c86f9fda8f293f2cfa7
4 files changed