If we compile and deploy once time using bitbake, the image file will be generated in /deploy/image/*.bin.
If we deploy again, the new image file will be generated again.
Therefore, the image file will change much.
we execute "bitbake -c cleansstate linux-imx" in order to clean image file, but our kernel source code are also cleaned.
How can we clean image file and keep kernel source code that we have modified?