valgrind: Backport 3.9.0 from oe-core

:Release Notes:
valgrind_svn is referencing external svn module VEX in HEAD and latest
revision isn't compatible with our build, switch to release tarball.

Backported without modification from oe-core
92bb949465feb39b2460ea0ddb45f259ca8baecc

:Detailed Notes:
Both patch files are different than what was in oe-core/dylan and we
cannot reused them, so they were backported as well.

:Testing Performed:
Only build tested.

:QA Notes:
Only included in -devel image.

:Issues Addressed:
[ES-390] Retain premirror tarballs for upstream components
[GF-59378] CCC: Upgrade valgrind to 3.9.0

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>

Originally-reviewed-on: https://g2g.palm.com/4483
Cherry-picked-from-commit: 8be1c9606ff242e9e41eca6a8fd21c0ce52f5340
Cherry-picked-from-branch: @acadia

Change-Id: Ibb70d8197dfb92bf5a4de09cca3eddf75f74611e
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: @acadia