Add back missing libdl in linker command. The executables here contain call

to function defined in libdl.so but the library is missing the linker commands.
Currently, the library is linked via dependency of another library.  While this
works, it is not the right thing to do.

libacc/tests/Android.mk

@@ -25,7 +25,8 @@ LOCAL_SRC_FILES:= \
     disassem.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-    libacc
+    libacc \
+    libdl
 
 LOCAL_CFLAGS := -O0 -g 
 
@@ -57,7 +58,8 @@ LOCAL_SRC_FILES:= \
 	runtimeTest.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-    libacc
+    libacc \
+    libdl
 
 LOCAL_CFLAGS := -O0 -g