sanitycheck: add fixture support to hardware map

It is now possible to add a list of fixture a platform supports which is
matched to testcases requesting fixtures to be avaiable to be able to
run.

For example:

- available: true
  connected: true
  id: 0240000026334e450015400f5e0e000b4eb1000097969900
  platform: frdm_k64f
  product: DAPLink CMSIS-DAP
  runner: pyocd
  serial: /dev/ttyACM9
  fixtures:
    - gpio_loopback

Fixes #24943

Signed-off-by: Anas Nashif <anas.nashif@intel.com>