Replace novacrypt BIP39 library with the zcash one

which is MIT licensed instead of GPLv3

Change-Id: I30041de5ab1c1f8c7d5f57d6c60e28300a285259
diff --git a/Android.bp b/Android.bp
index a8f4ab8..5664d6d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -41,7 +41,7 @@
         "seedvault-lib-koin-android",
         "seedvault-lib-koin-androidx-viewmodel",
         // bip39
-        "seedvault-lib-novacrypto-bip39",
+        "seedvault-lib-kotlin-bip39",
     ],
     manifest: "app/src/main/AndroidManifest.xml",