Changes

suci-tutorial: fix spec reference

Related: OS#6531
Change-Id: If98c0b1093c7d19ea0278758c635b8405b465a2e

pySim-prog_test: tolerate empty reader slots

The test currently expects all reader slots to be populated. This means
the cards may plugged into a random order, but there may not be any empty
slots in the system at all. This requirement is easy to meet when each
card has its own single-slot USB PCSC-reader, but as soon as multislot
readers are used there may be some empty slots.

Related: OS#6532
Change-Id: I7ba1d1350b6998d65e90408184accdb212556a7c

pySim-prog_test: tolerate missing .data files

When the test detects a card, but does not find the .data faile for
it, then it fails. This can be a problem in case we want to intentionally
exclude a specific card model.

Related: OS#6532
Change-Id: Iba196ada0076385de7bffcb157a85fda0a6c1852

pySim-prog_test: supress stderr when probing for cards

When probing for cards, the probing might fail in case the terminal
is empty. This results into lengthy error log output that is not
of interest.

Related: OS#6532
Change-Id: I1d44f9458a05992d79b0152d3affcfeb783cccff