Add makefile with check target.
Create db directory if it did not yet exist.

This is fallout from the svn -> git migration, as git does not support
empty directories.
soc runnig buildfarm

Signed-off-by: krishnatejaperannagari <krishnatejaperannagari@gmail.com>
tables complete

Signed-off-by: krishnatejaperannagari <krishnatejaperannagari@gmail.com>