This is because the non-Q variant for indices 0 and 1 are just shuffling values.
There is no perf difference between INS SIMD to SIMD and ZIP on Arm uArches but
preferring the INS alternative has a drawback on all uArches as ZIP being a three
operand instruction can be used to tie the result to the return register whereas
INS would require an fmov.
As such just update the test file for now.
gcc/testsuite/ChangeLog:
PR target/112375
* gcc.target/aarch64/vget_set_lane_1.c: Update test output.