Minimal TWRP: Add/Replace needed libs for FBE as well as busybox

* Addresses the problems mentioned in
  https://github.com/nkk71/android/commit/70da2068a8b63758c776b4eed663feaf5a55f6cd
  1) system/keymaster and system/security are replaced by
     AOSP-android-8.0.0_r34 versions
  2) weaver and libkeyutils get synced to a staging directory
     then symlinked to the proper destination directories

* Comment out the removal of android_frameworks_base

* Add TeamWin's android-8.0 busybox

remove-minimal.xml

@@ -409,7 +409,9 @@
      but syncing a 1GB repo for 4 to 5MB is not worth
      it for me.
 -->
+<!--
     <remove-project name="android_frameworks_base" />
+-->
 
 
     <remove-project name="android_frameworks_opt_telephony" />
@@ -454,4 +456,8 @@
     <remove-project name="android_packages_apps_OpenDelta" />
     <remove-project name="android_packages_apps_Phonograph" />
 
+
+  <!-- LAST: Add/Replace repos and particular directories needed by TWRP -->
+  <include name="twrp-minimal-extras.xml" />
+
 </manifest>

twrp-minimal-extras.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<manifest>
+
+<!-- FBE libs (using AOSP tag android-8.0.0_r34) -->
+    <!-- libkeymaster1.so -> libkeymaster_portable.so and libkeymaster_staging.so -->
+    <remove-project name="platform/system/keymaster" />
+    <remove-project name="platform/system/security" />
+    <project path="system/keymaster" name="platform/system/keymaster" remote="aosp" revision="refs/tags/android-8.0.0_r34" />
+    <project path="system/security" name="platform/system/security" remote="aosp" revision="refs/tags/android-8.0.0_r34" />
+
+    <!-- weaver -->
+    <project path="TeamWin/AOSP/hardware/interfaces" name="platform/hardware/interfaces" remote="aosp" revision="refs/tags/android-8.0.0_r34" >
+         <!-- TeamWin/AOSP is just a staging directory -->
+        <linkfile src="weaver" dest="hardware/interfaces/weaver" />
+    </project>
+
+    <!-- libkeyutils.so -->
+    <project path="TeamWin/AOSP/system/core" name="platform/system/core" remote="aosp" revision="refs/tags/android-8.0.0_r34" >
+         <!-- TeamWin/AOSP is just a staging directory -->
+        <linkfile src="libkeyutils" dest="system/core/libkeyutils" />
+    </project>
+
+
+<!-- busybox -->
+    <project path="external/busybox" name="TeamWin/android_external_busybox" remote="github" revision="android-8.0" />
+
+</manifest>