Based on earlier work by AMD in <https://gitlab.inria.fr/guix-hpc/guix-hpc>.
* gnu/packages/rocm-apps.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/patches/rochpl-supported-distros.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
Merges guix/guix!7251
Change-Id: I1542a423faa854f5dfcb8965c4ffa3ab1e17098d
Signed-off-by: Cayetano Santos <csantosb@inventati.org>