mm: Fix false warnings from apply_to_page_range

This warning message is triggered when addr + size overflows to zero.
This has been observed to occur on ARM64 with CONFIG_RANDOMIZE_BASE=y
when the end of the linear address range is placed at ffffffffffffffff.

Change-Id: I57e34e522a4fc25ab43a0a00be6d0927ea4a1272
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>