MIPS: Fix simulator data trace for DSLL and BAL/BGEZAL.

MIPS: Fix simulator data trace for DSLL and BAL/BGEZAL.

In simulator data trace, DSLL did not print result and
BAL/BGEZAL omitted result from an instruction executed
in delay slot.

TEST=cctest/test-assembler-mips[64]
BUG=

Review URL: https://codereview.chromium.org/1245173002

Cr-Commit-Position: refs/heads/master@{#29796}