twister: handler: optimize handler testsuite check

in many platforms, before  the debuger flash, the former testsuite
many already executed, so we will see some old testsuite name.
and we should not compare them directly, instead if we compare in
reversed order them we can avoid such mis-judge.

Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
1 file changed