arm: Setup physical load address not virtual

Qemu read load address from elf. If is virtual thinks
that it is physical which isn't. That's why it fails.

Setup physical entry point and correct load sections
will fixed it.

Signed-off-by: Michal Simek <monstr@monstr.eu>

Conflicts:

	arch/arm/kernel/vmlinux.lds.S

arm: Do not hardcoded kernel virtual address

Virtual kernel base address is stored in CONFIG_PAGE_OFFSET.

Signed-off-by: Michal Simek <monstr@monstr.eu>