webos_arch_indep: Issue error when inherited after webos_machine*_dep
webos_arch_indep: Issue error when inherited after webos_machine*_dep

:Release Notes:
When webos_arch_indep is inherited after webos_machine_dep or
webos_machine_impl_dep, PACKAGE_ARCH is no longer set to MACHINE_ARCH.
Issue an error in such cases, because it's usually a mistake.

:Detailed Notes:
The same will happen when you set PACKAGE_ARCH in recipe after
inheriting upstream allarch.

:Testing Performed:
Only build tested.

:QA Notes:
No change to image.

:Issues Addressed:
[GF-56800] Order of inheriting webos_arch_indep and webos_machine_dep/
           webos_machine_impl_dep matters
[GF-59256] CCC: Order of inheriting webos_arch_indep and
           webos_machine_dep/webos_machine_impl_dep matters

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>
Open-webOS-DCO-1.0-Signed-off-by: Susan Montooth <susan.montooth@lge.com>

Change-Id: Ib08a737309b0d314eb7abaf55c54c080d214095a
Originally-reviewed-on: https://g2g.palm.com/4462
Cherry-picked-from-commit: 30733df81749d256d5a3cc02c613e5f80428e6af
Cherry-picked-from-branch: da39a3ee5e6b4b0d3255bfef95601890afd80709@acadia

nizovn/meta-webos-ports,openwebos/meta-webos,openwebos/meta-webos,openwebos/meta-webos,nizovn/meta-webos-ports,Garfonso/meta-webos-ports,Garfonso/meta-webos-ports,openwebos/meta-webos