ARM: shmobile: APMU: Fix warnings due to improper printk formats

Use the %pr printk specifier to print resource variables. This fixes
warnings on platforms where resource_size_t has a different size than
int.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>