[feature] Add default cuda area to allocate unified memory.

9 jobs for area_cuda_unified in 6 minutes and 3 seconds (queued for 1 second)
Status Job ID Name Coverage
  Style
passed #81602
nix kvm
clang-format

00:00:02

passed #81601
nix kvm
repoquality

00:00:03

passed #81603
nix kvm
style:docs

00:00:35

 
  Build
passed #81608
cuda
make:chimera

00:00:56

passed #81604
nix kvm
make:generic

00:01:00

passed #81607
knl
make:knl

00:03:55

passed #81605
nix kvm
make:out-of-tree

00:01:13

passed #81606
nix kvm
make:valgrind

00:01:51

 
  Distribution
passed #81609
nix kvm
distcheck

00:01:32