Include libnetd_client in recovery

* Bionic tries to load it, and if it isn't in /sbin and /system
  is mounted, it loads it from there and prevents it from unmouting

Change-Id: I33d0b6ba4503f2822d96033fa26d53e10b8ce1c5
Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
diff --git a/prebuilt/Android.mk b/prebuilt/Android.mk
index a09c923..bfa4ebd 100644
--- a/prebuilt/Android.mk
+++ b/prebuilt/Android.mk
@@ -74,6 +74,8 @@
     RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libbacktrace.so
     RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libunwind.so
     RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libunwind-ptrace.so
+    # Dynamically loaded by lollipop libc and may prevent unmounting system if it is not present in sbin
+    RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libnetd_client.so
 else
     # Not available in lollipop
     RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/libcorkscrew.so