pkg-stats: update grep tests for package type

Update the grep tests used to determine the package type.

The package name and directory are now worked out magically due to:

 package: add helper functions to get package name and directory magically

Because of this the extra arguments were removed by patches:

 package: remove useless arguments from GENTARGETS
 package: remove useless arguments from AUTOTARGETS
 package: remove useless arguments from CMAKETARGETS

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>