Add switch_case.test to profcheck-xfail.txt (#165407)

Author: mtrofin

llvm/utils/profcheck-xfail.txt

@@ -550,6 +550,7 @@ tools/UpdateTestChecks/update_test_checks/stable_ir_values5.test
 tools/UpdateTestChecks/update_test_checks/stable_ir_values6.test
 tools/UpdateTestChecks/update_test_checks/stable_ir_values_funcs.test
 tools/UpdateTestChecks/update_test_checks/stable_ir_values.test
+tools/UpdateTestChecks/update_test_checks/switch_case.test
 tools/UpdateTestChecks/update_test_checks/tbaa-semantics-checks.test
 tools/UpdateTestChecks/update_test_checks/various_ir_values_dbgrecords.test
 Transforms/AtomicExpand/AArch64/atomicrmw-fp.ll