ANDROID: Add kunit installation rules

Use pkg_install to create installation rules for kunit test modules. To
build and install kunit test modules into /tmp/kunit_tests directory run:

$ tools/bazel run -- //common:kunit_tests_x86_64_dist -v \
    --destdir /tmp/kunit_tests

Also updated the kunit Android README to use this rule instead of
creating tests.zip and unzipping it.

Bug: 324907235

Change-Id: I1e611cf8cc2836cb213526aa270da6fd422f7352
Signed-off-by: Joe Fradley <joefradley@google.com>

BUILD.bazel

@@ -4,6 +4,7 @@
 load("@bazel_skylib//lib:paths.bzl", "paths")
 load("@bazel_skylib//rules:copy_file.bzl", "copy_file")
 load("@bazel_skylib//rules:write_file.bzl", "write_file")
+load("@rules_pkg//pkg:install.bzl", "pkg_install")
 load(
     "@rules_pkg//pkg:mappings.bzl",
     "pkg_filegroup",
@@ -857,6 +858,13 @@ pkg_filegroup(
     visibility = ["//visibility:private"],
 )
 
+pkg_install(
+    name = "kunit_tests_arm64_install",
+    srcs = [
+        ":kunit_tests_arm64_pkg_files",
+    ],
+)
+
 pkg_files(
     name = "kunit_x86_64_stripped",
     srcs = [":kunit_x86_64"],
@@ -884,7 +892,14 @@ pkg_filegroup(
         ":kunit_x86_64_test_config",
     ],
     prefix = _KUNIT_DIR,
-    #visibility = ["//visibility:private"],
+    visibility = ["//visibility:private"],
+)
+
+pkg_install(
+    name = "kunit_tests_x86_64_install",
+    srcs = [
+        ":kunit_tests_x86_64_pkg_files",
+    ],
 )
 
 # DDK Headers

tools/testing/kunit/android/README

@@ -49,16 +49,13 @@ View test results
     ....
 
 Run ACK KUnit tests via tradefed
- * Build ACK KUnit tests:
-   $ tools/bazel build //common:tests_zip_arm64_dist
-
- * Unzip tests.zip (e.g. in local tmp directory):
-   $ unzip bazel-bin/common/arm64/tests.zip -d tmp
+ * Build ACK KUnit tests and install (e.g. /tmp/kunit_tests):
+   $ tools/bazel run -- //common:kunit_tests_x86_64_install -v --destdir /tmp/kunit_tests
 
  * With device connected and accessible via adb run the tests:
    $ prebuilts/tradefed/filegroups/tradefed/tradefed.sh run commandAndExit \
          template/local_min --template:map test=suite/test_mapping_suite   \
-         --include-filter kunit --tests-dir=tmp/testcases --primary-abi-only
+         --include-filter kunit --tests-dir=/tmp/kunit_tests --primary-abi-only
    ....
    =======================================================
    =============== Summary ===============