nvhpc: add 'compiler' tag to the override (#46301)

fixes #46295

A proper solution would be a tag directive that accumulates tags
with the ones defined in base classes.

For the time being, rewrite them explicitly.

Signed-off-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>

var/spack/repos/builtin/packages/nvhpc/package.py

@@ -406,7 +406,7 @@ class Nvhpc(Package, CompilerPackage):
     homepage = "https://developer.nvidia.com/hpc-sdk"
 
     maintainers("samcmill")
-    tags = ["e4s"]
+    tags = ["e4s", "compiler"]
 
     skip_version_audit = ["platform=darwin", "platform=windows"]