Don't allow parallel crash_test in Makefile (#9180)

Summary:
Using deps for running blackbox and whitebox allows them to be
parallelized, which doesn't seem to be working well.

Pull Request resolved: #9180

Test Plan: make -j24 crash_test

Reviewed By: siying

Differential Revision: D32500851

Pulled By: pdillinger

fbshipit-source-id: 364288c8d023b93e7ca2724ea40edae2f4eb0407

Makefile

@@ -977,15 +977,27 @@ check_some: $(ROCKSDBTESTS_SUBSET)
 ldb_tests: ldb
 	$(PYTHON) tools/ldb_test.py
 
-crash_test: whitebox_crash_test blackbox_crash_test
+crash_test:
+# Do not parallelize
+	$(MAKE) whitebox_crash_test
+	$(MAKE) blackbox_crash_test
 
-crash_test_with_atomic_flush: whitebox_crash_test_with_atomic_flush blackbox_crash_test_with_atomic_flush
+crash_test_with_atomic_flush:
+# Do not parallelize
+	$(MAKE) whitebox_crash_test_with_atomic_flush
+	$(MAKE) blackbox_crash_test_with_atomic_flush
 
-crash_test_with_txn: whitebox_crash_test_with_txn blackbox_crash_test_with_txn
+crash_test_with_txn:
+# Do not parallelize
+	$(MAKE) whitebox_crash_test_with_txn
+	$(MAKE) blackbox_crash_test_with_txn
 
 crash_test_with_best_efforts_recovery: blackbox_crash_test_with_best_efforts_recovery
 
-crash_test_with_ts: whitebox_crash_test_with_ts blackbox_crash_test_with_ts
+crash_test_with_ts:
+# Do not parallelize
+	$(MAKE) whitebox_crash_test_with_ts
+	$(MAKE) blackbox_crash_test_with_ts
 
 blackbox_crash_test: db_stress
 	$(PYTHON) -u tools/db_crashtest.py --simple blackbox $(CRASH_TEST_EXT_ARGS)