This patch is to get correct physical address of the reset function for
PAE systems, which use aliased physical memory for booting.

See the "ARM: mm: Introduce virt_to_idmap() with an arch hook" for details.
Signed-off-by: NVitaly Andrianov <vitalya@ti.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>