JFS: simplify types to get rid of sparse warning
JFS: simplify types to get rid of sparse warning

jfs_metapage.c was using uints and unsigned ints inconsistently when
regular ints suffice.

Signed-off-by: Dave Kleikamp <9bc4ae2e83dabb4524fc335d7c1dac408a99dbe5@linux.vnet.ibm.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs