lvm: Enable host support

- Removed __unused that is not supported by host toolchain
- Removed unused libdl dependency from libbundlewrapper

Bug: 180116440
Test: run lvm_benchmark on host

Change-Id: I2b522ba543c1c2722dde7d672e038c547dd1aad6
diff --git a/media/libeffects/lvm/lib/Android.bp b/media/libeffects/lvm/lib/Android.bp
index 0ac9aa3..73c913b 100644
--- a/media/libeffects/lvm/lib/Android.bp
+++ b/media/libeffects/lvm/lib/Android.bp
@@ -9,6 +9,7 @@
     },
 
     vendor: true,
+    host_supported: true,
     srcs: [
         "StereoWidening/src/LVCS_BypassMix.cpp",
         "StereoWidening/src/LVCS_Control.cpp",