remoteproc: clear bitmap in remoteproc_shutdown()

Clear the allocated bitmap in `remoteproc_shutdown()` to
prevent resource table parsing failures on repeated remoteproc
starts.

Signed-off-by: Li Zhiyuan <doitysf@hotmail.com>

lib/remoteproc/remoteproc.c

@@ -292,6 +292,7 @@ int remoteproc_shutdown(struct remoteproc *rproc)
 					ret = rproc->ops->shutdown(rproc);
 				if (!ret) {
 					rproc->state = RPROC_OFFLINE;
+					rproc->bitmap = 0;
 				}
 			}
 		}