[Midnightbsd-cvs] src: umass.c: Add NO_SYNCHRONIZE_CACHE which fakes a success result for

[laffer1 at midnightbsd.org]

Log Message:
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Add NO_SYNCHRONIZE_CACHE which fakes a success result for bad IDE bridges since we can't do this in the CAM layer like a traditional SCSI device

Modified Files:
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    src/sys/dev/usb:
        umass.c (r1.6 -> r1.7)
        (http://cvsweb.midnightbsd.org/src/sys/dev/usb/umass.c?r1=1.6&r2=1.7)