fs_config: add passwd to build

Setup PRODUCT_PACKAGES for the passwd file.

The passwd file is always included in the product
build but may be empty.

Test: That the passwd file is in the build image.
Change-Id: Iedbb81b15d3b281ff4ad36d28adc2ba4523785f2
Signed-off-by: William Roberts <william.c.roberts@intel.com>
1 file changed