UBUNTU: SAUCE: IMX51: skip ATA PASS THROUGH command for USB storage disk from JMicron

BugLink: http://bugs.launchpad.net/bugs/499881

This issue is the same as LP431963, which was fixed in commit
a60f8dfc

. The USB storage disk from JMircon
uses the same USB-TO-SATA controller as our Babbage board. But it use different
USB VID and PID.

Add JMircon USB VIP and PID to the checking list.

[apw@canonical.com: pulled matches out to separate function.]
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: Andy Whitcroft <apw@canonical.com>