These fields are defined by FAT32 itself, and are specified as 32-bit
values. So switch them from sector_t to simple uint32_t.
Change-Id: I98afecfbe1f8a1b83fbdd4ec3fea016b8e0b985d
sector_t is still 32-bit on most targets, resulting in compile
warnings on debug builds when used with an %llu/%llx format.
Fix by always casting the sector to uint64_t.
Change-Id: I5afc4a0ae170981c304274806e00ac07be232cd8
