rocrtst: set HSA_ENABLE_INTERRUPT after TestExample creation (#2687)

Signed-off-by: Horatio Zhang <Hongkun.Zhang@amd.com>
Co-authored-by: cfreeamd <166262151+cfreeamd@users.noreply.github.com>

projects/rocr-runtime/rocrtst/suites/test_common/main.cc

@@ -136,8 +136,8 @@ TEST(rocrtst, Test_Example) {
 }
 
 TEST(rocrtst, Test_Example_InterruptDisabled) {
-  rocrtst::SetEnv("HSA_ENABLE_INTERRUPT", "0");
   TestExample tst;
+  rocrtst::SetEnv("HSA_ENABLE_INTERRUPT", "0");
   RunGenericTest(&tst);
 }