meta-ibm: witherspoon: network: specify folder for extra

Specify the folder for the extra files explicitly instead of by package
name, such that the package name can change and continue to use this
folder.

This is step 2 of the process to rename network to phosphor-network to
match the general naming convention for phosphor daemons.

Tested: Verified witherspoon image builds.
Change-Id: I5ea6c8e9d4955fe421e53ff8d6ae3f6b37e38235
Signed-off-by: Patrick Venture <venture@google.com>
1 file changed