[SPARK-19073] LauncherState should be only set to SUBMITTED after the application is submitted

## What changes were proposed in this pull request?
LauncherState should be only set to SUBMITTED after the application is submitted.
Currently the state is set before the application is actually submitted.

## How was this patch tested?
no test is added in this patch

Author: mingfei <mingfei.smf@alipay.com>

Closes #16459 from shimingfei/fixLauncher.