This patch almosts completes the conversion to ARCH_MULTI_V5
for arch-vt8500.

Both single platform and multiplatform configurations are supported
until earlyprintk support is available for multiplatform.
Signed-off-by: NTony Prisk <linux@prisktech.co.nz>
Acked-by: NArnd Bergmann <arnd@arndb.de>