mach-snapdragon: use 1MiB for get_page_table_size()

With 14+ entries in the memory map, we need quite a bit more space for
the page tables.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
1 file changed