Separate out libkeyutils and mini_keyctl.

They have different licenses.

Test: treehugger
Change-Id: I9ab8ff33d2b302a9e334b29152f6cabf46121ea9

libkeyutils/Android.bp

@@ -2,25 +2,10 @@ package {
     default_applicable_licenses: ["system_core_libkeyutils_license"],
 }
 
-// Added automatically by a large-scale-change that took the approach of
-// 'apply every license found to every target'. While this makes sure we respect
-// every license restriction, it may not be entirely correct.
-//
-// e.g. GPL in an MIT project might only apply to the contrib/ directory.
-//
-// Please consider splitting the single license below into multiple licenses,
-// taking care not to lose any license_kind information, and overriding the
-// default license using the 'licenses: [...]' property on targets as needed.
-//
-// For unused files, consider creating a 'fileGroup' with "//visibility:private"
-// to attach the license to, and including a comment whether the files may be
-// used in the current project.
-// See: http://go/android-license-faq
 license {
     name: "system_core_libkeyutils_license",
     visibility: [":__subpackages__"],
     license_kinds: [
-        "SPDX-license-identifier-Apache-2.0",
         "SPDX-license-identifier-BSD",
     ],
     // large-scale-change unable to identify any license_text files