linux-imx

arm64: Use phys_addr_t type for physical address

Change the type of physical address from unsigned long to phys_addr_t,
make valid_phys_addr_range more readable.

Signed-off-by: Min-Hua Chen <orca.chen@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>