Blackfin: pata_bfin: fix printf warning

pata_bfin.c: In function 'bfin_ata_identify':
pata_bfin.c:887:2: warning: format '%x' expects type 'unsigned int',
	but argument 2 has type 'lbaint_t'

Signed-off-by: Mike Frysinger <vapier@gentoo.org>