VIGS: Removed a compilation warnning

VIGS: Removed a compilation warnning

Changed the format specifier from '%u' to '%pa' for the type 'resource_size_t'.
Here is an excerpt from the document below,
'https://www.kernel.org/doc/Documentation/printk-formats.txt',
"
Physical addresses types phys_addr_t:

    %pa[p]  0x01234567 or 0x0123456789abcdef

    For printing a phys_addr_t type (and its derivatives, such as
    resource_size_t) which can vary based on build options, regardless of
    the width of the CPU data path. Passed by reference.
".

Change-Id: Ia0d72411de707cb7f3aaba7d91e86f79f5c2b607
Signed-off-by: Jinhyung Jo <jinhyung.jo@samsung.com>