Move lc3_enc -> lc3

This folder will contain LC3 decoder too.

Bug: 150670922
Change-Id: I8ea21f44813c1c388e8ee2fd6190331d180b60db
diff --git a/system/main/Android.bp b/system/main/Android.bp
index 3073c4b..7d3c50e 100644
--- a/system/main/Android.bp
+++ b/system/main/Android.bp
@@ -104,7 +104,7 @@
         "libFraunhoferAAC",
         "libg722codec",
         "liblc3codec",
-        "liblc3encoder",
+        "liblc3",
         "libudrv-uipc",
         "libprotobuf-cpp-lite",
         "libbluetooth_gd", // Gabeldorsche