Patch merged into coreboot/master: acpigen_write_package: Return pointer to package element counter

the following patch was just integrated into master:
commit 85d80276281e179b4e6a896e731090e9580ce8b9
Author: Duncan Laurie 
Date:   Sat Jul 2 19:53:54 2016 -0700

acpigen_write_package: Return pointer to package element counter

Have acpigen_write_package() return a pointer to the package element
    counter so it can be used for dynamic package generation where needed.

Change-Id: Id7f6dd03511069211ba3ee3eb29a6ca1742de847
    Signed-off-by: Duncan Laurie 
    Reviewed-on: https://review.coreboot.org/15536
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Aaron Durbin

See https://review.coreboot.org/15536 for details.

-gerrit