ARM: clps711x: make all virtual addresses definition via one macro

This patch make all virtual addresses definition via one macro.
This modification allows to avoid warning "BUG: mapping for 0x80000000
at 0xff000000 out of vmalloc space".

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>