Fix path check for default value of DEPLOYDIR

[michalsoltysiak]

In case DEPLOYDIR is not defined in the local.conf, find_files tries to use default $BUILDDIR/tmp/deploy and assigns this value to global_values.deploydir.
But, when verifying if DEPLOYDIR exists, it uses temporary variable deploydir reflecting value from the local.conf. Obviously, when DEPLOYDIR was not defined in the localconf, the temporary variable deploydir is an empty string. As a result path check always fails in case DEPLOYDIR is not set in the local.conf.

[michalsoltysiak]

@matthewb66 any chance you are going to:

• integrate the bugfix
• provide with another release
  ?

[matthewb66]

This repo will be deprecated shortly as shown in the README.
This is because it uses JSON dependency upload (which will not be supported in BD from a future release) and because it requires an updated list of OE recipes within the BD KB which cannot be maintained.
If you wish to maintain a separate fork you are welcome to.
Please refer to the new beta script https://github.com/matthewb66/bd_scan_yocto for improved methods to scan Yocto projects - and in particular the dev branch for the latest changes.