Ensure single-step always causes global deopt

We were incorrectly failing to globally deopt when the single-step
event is enabled if we have an active Breakpoint event at the same
time. This could cause single-step events to be missed in some
circumstances.

This is likely the cause of some rare flakes in the jdwp tests.

Bug: 69241796
Bug: 69243589

Test: ./test.py --host -j50
Test: ./test/run-test --host \
                      --with-agent \
                        'libbreakpointlogger.so=LMain;->main([Ljava/lang/String;)V@0' \
                      997-single-step

Change-Id: I24750625f0a22e61342b336935e32b0d18e9e4d6