Use full path in #include directive in Driver.cpp (facebookincubator#…

…10480)

Summary:
`#include "Driver.h"` --> `#include "velox/exec/Driver.h"`

All other files in the code repository use full paths, so this file
should do the same to be consistent.

No functional changes.

Pull Request resolved: facebookincubator#10480

Reviewed By: Yuhta

Differential Revision: D59872849

Pulled By: kevinwilfong

fbshipit-source-id: bb4324c79e93d5cb2a67318ac4827bdb7fecd9cb

velox/exec/Driver.cpp

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "Driver.h"
+#include "velox/exec/Driver.h"
 #include <folly/ScopeGuard.h>
 #include <folly/executors/QueuedImmediateExecutor.h>
 #include <folly/executors/thread_factory/InitThreadFactory.h>