As pySim.cdma_ruim was not imported by test_files.py, the unit tests
were apparently never executed and hence didn't pass. Let's fix both
of those problems.
Change-Id: Icdf4621eb68d05a4948ae9efeb81a007d48e1bb7
R-UIM (CDMA) cards are pretty much like the normal GSM SIM cards and
"speak" the same 2G APDU protocol, except that they have their own file
hierarchy under MF(3f00)/DF.CDMA(7f25). They also have DF.TELECOM(7f10)
and even DF.GSM(7f20) with a limited subset of active EFs. The content
of DF.CDMA is specified in 3GPP2 C.S0023-D.
This patch adds a very limited card profile for R-UIM, including auto-
detecion and a few EF definitions under DF.CDMA. This may be useful
for people willing to explore or backup their R-UIMs. To me this was
useful for playing with an R-UIM card from Skylink [1] - a Russian
MNO, which provided 450 MHz CDMA coverage until 2016.
[1] https://en.wikipedia.org/wiki/Sky_Link_(Russia)
Change-Id: Iacdebdbc514d1cd1910d173d81edd28578ec436a
