Setup for android_library.

Summary:
We already use `attrs_validators` as a way to expose `ValidationInfo` to `apple_library` and` apple_test`, this brings it to Android too:

Context: https://fb.workplace.com/permalink.php?story_fbid=pfbid02bd14VGLE15KsL6DXAyx57hoszZPy47FjyTR32t5T4xFYRUehC5oZhsLEWkvKajBjl&id=100017837684196

Reviewed By: IanChilds

Differential Revision: D68782105

fbshipit-source-id: fc26ca7b374f87224c027880ecdbe291d712a8e8

android/android_library.bzl

@@ -5,6 +5,7 @@
 # License, Version 2.0 found in the LICENSE-APACHE file in the root directory
 # of this source tree.
 
+load("@prelude//:attrs_validators.bzl", "get_attrs_validators_info")
 load("@prelude//:validation_deps.bzl", "get_validation_deps_outputs")
 load(
     "@prelude//android:android_providers.bzl",
@@ -54,7 +55,7 @@ def android_library_impl(ctx: AnalysisContext) -> list[Provider]:
             manifest = ctx.attrs.manifest,
         ),
         merge_exported_android_resource_info(ctx.attrs.exported_deps),
-    ] + android_providers
+    ] + android_providers + get_attrs_validators_info(ctx)
 
 def optional_jars(ctx: AnalysisContext) -> list[Artifact]:
     return ctx.attrs.android_optional_jars or []

decls/android_rules.bzl

@@ -10,6 +10,7 @@
 # the generated docs, and so those should be verified to be accurate and
 # well-formatted (and then delete this TODO)
 
+load("@prelude//:attrs_validators.bzl", "ATTRS_VALIDATORS_NAME", "ATTRS_VALIDATORS_TYPE")
 load("@prelude//decls:test_common.bzl", "test_common")
 load("@prelude//utils:clear_platform.bzl", "clear_platform_transition")
 load(":android_common.bzl", "android_common")
@@ -783,6 +784,7 @@ android_library = prelude_rule(
             "runtime_deps": attrs.list(attrs.dep(), default = []),
             "source_abi_verification_mode": attrs.option(attrs.enum(SourceAbiVerificationMode), default = None),
             "use_jvm_abi_gen": attrs.option(attrs.bool(), default = None),
+            ATTRS_VALIDATORS_NAME: ATTRS_VALIDATORS_TYPE,
         }
     ) | jvm_common.plugins(),
 )