buildroot

packages: fix the header package name

According to the documentation:

"Header: The file starts with a header. It contains the module name,
preferably in lowercase, enclosed between separators made of 80 hashes."

This patch makes the appropriate changes.

Signed-off-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>