New tests orphan2 and unknown2 fail in cris-elf

[Hans-Peter Nilsson]

Your new tests fail for cris-axis-elf, supposedly for some other
target too.

Looking briefly, it seems orphan2 assumes a bit too much about
section ordering.  .modinfo comes before .text in orphan2.

unknown2 uses -shared without testing that the linker supports
it.

Maybe using "target: *-*-linux*" is the right fix for both of
them.  Thanks.

brgds, H-P