qla2xxx: ISP27xx optimize fwdump entry table lookup.

Since the entry call array is sorted in order of entry type opcode,
the search can be terminated as soon as the search key is exceeded.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>