Core: Hardware profile support

[travier-anssi]

• [x] Add hardware profiles to Core:
  • [x] QEMU/KVM
  • [x] Lenovo x260
• [x] Hardware profile selection at install time using symlink setup in Core state partition:
  • [x] /etc/modules-load.d/hardware.conf -> /mnt/state/core/etc/modules-load.d/hardware.conf
  • [x] /mnt/state/core/etc/modules-load.d/hardware.conf -> /usr/share/clipos/hardware-profiles/kvm-guest/hardware.conf for QEMU/KVM
• [x] Move hardware profiles to standalone repo, together with kernel configsets
• [x] Support per profile firmware list

[travier-anssi]

Completed with:

• https://github.com/clipos/src_portage_clipos/commit/63bf8e9fc675686235da0ee1e05c0b7c000e387d
• https://github.com/clipos/src_platform_config-linux-hardware/commit/1b79cb9b70cd9978457a5f0f716255fbd57bcfe4
• https://github.com/clipos/products_clipos/commit/5cc35a0f5cea7241773be997bf01ed027965cfe1