[Libomptarget] Fix test using old unsupported lit string

jhuber6 · jhuber6 · commit 80787213eae2 · 2022-04-18T23:08:12.000-04:00
Summary:
One test had an old "unsupported" string that used the old `newDriver`
string which was removed. This test should be updated to use the
`oldDriver` one instead.
diff --git a/openmp/libomptarget/test/mapping/map_back_race.cpp b/openmp/libomptarget/test/mapping/map_back_race.cpp
@@ -4,7 +4,7 @@
 
 
 // UNSUPPORTED: x86_64-pc-linux-gnu
-// UNSUPPORTED: x86_64-pc-linux-gnu-newDriver
+// UNSUPPORTED: x86_64-pc-linux-gnu-oldDriver
 
 #include <algorithm>
 #include <cstdlib>
