lib: sbi: Refine addr format in sbi_printf

Although we have PRILX to help us print unsigned long without
considering the 32bit/64bit differences, there are still some
places using 08lx and 016lx manually --- leading to redundant code.

This commit fixes the issue by using PRILX all the time.

Signed-off-by: Dong Du <Dd_nirvana@sjtu.edu.cn>
Reviewed-by: Anup Patel <anup.patel@wdc.com>