FsCrypt update: support fscrypt policies v1 and v2

This patchset introduces support decryption for Android 11.

In this update we deprecate ext4crypt. To specify the
policy version to use, use TW_USE_FSCRYPT_POLICY := 1 or
TW_USE_FSCRYPT_POLICY := 2. By default policy version will
be set to 2 if this variable is omitted.

Change-Id: I62a29c1bef36c259ec4b11259f71be613d20a112
diff --git a/twrpinstall/Android.bp b/twrpinstall/Android.bp
index 656a4a7..81fe3fb 100755
--- a/twrpinstall/Android.bp
+++ b/twrpinstall/Android.bp
@@ -64,7 +64,8 @@
     include_dirs: [
         "bootable/recovery",
         "bootable/recovery/install/include",
-        "bootable/recovery/recovery_utils/include"
+        "bootable/recovery/recovery_utils/include",
+        "bootable/recovery/crypto/fscrypt"
     ],
 
     srcs: [