eIM, add new PSMOs introduced with SGP.32 V.1.2
SGP.32 V.1.2 adds new PSMOs, which are setFallbackAttribute,
unsetFallbackAttribute and setDefaultDpAddress. Let's add testcases
for those.
Related: SYS#8100
Change-Id: Ic2416dc06d917228b71c61da9acebed26d68b2d9
