This patch (as904) adds code to check for endpoint descriptor bInterval
values outside the legal limits.  Illegal values are set to 32 ms, which
seems like a reasonable default.

This fixes Bugzilla #8432.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>