hammerhead: update msmb_isp.h kernel header

Bug: 11257917
Change-Id: If6a4878df8f8076ec9c20ab735c7a49394eebdf8
hammerhead: Change UAP for sprint

Maximum Message Size: 1MB MO, 2MB MT

Bug: 11324029

Change-Id: I7817d1c59b4be757e564e258b045d52e1cd7cf70
my changes