Additional packages are added to the PROVIDES variable, depending on
the type of processor being supported, e.g. i.MX6Q, i.MX6SX, etc.
The old way this was being set could add multiple versions of the
same package to the PROVIDES variable which in turn can cause confusion
with sstate, e.g. a number of i.MX6 machines use :mx6q:mx6dl in their
overrides whereas others might only have :mx6q. With the previous
setting of PROVIDES, this package would not be sharable via sstate
between such machines.
This patch changes the process so that these extra packages are only
added once, improving the [re]usability of sstate.
Signed-off-by: Gary Thomas <gary@mlbassoc.com> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>