Add test 980 to knownfailures for no-image + jit

This configuration seems to be flaky for unknown reasons. It appears
there is some sort of race between the jit and stack-walking that
leads to us being unable to find the JIT compiled transition frames in
some situations.

Test: none
Bug: 73333076
Change-Id: I4e2a2f2fc4ec935edd0cd832dec6db739130d176