Use microdroid-specific apexd

This is to avoid unnecessary features like apexservice. On x86, the new
apexd is 50% smaller than the original and doesn't rely on
libbinder.so and apex_aidl_interface-cpp.so.

Bug: 260982509
Test: MicrodroidTestApp
Test: adb shell /apex/com.android.virt/bin/vm run-microdroid --debug
full

Change-Id: I94b0cd6817acfb1266d8bf434deb3d7175fca6d2
diff --git a/microdroid/Android.bp b/microdroid/Android.bp
index 0b3f7a6..f62d07b 100644
--- a/microdroid/Android.bp
+++ b/microdroid/Android.bp
@@ -67,7 +67,7 @@
         "heapprofd_client_api",
         "libartpalette-system",
 
-        "apexd",
+        "apexd.microdroid",
         "atrace",
         "debuggerd",
         "linker",