Add option to produce map file to AndroidNN debug build

 * Add LD flag to android.mk

Signed-off-by: Ryan OShea <ryan.oshea3@arm.com>
Change-Id: Ice817e0705ba65a024fd231cf871df708bb8fbb6
diff --git a/Android.mk b/Android.mk
index 4262246..2d291a4 100644
--- a/Android.mk
+++ b/Android.mk
@@ -296,7 +296,11 @@
         -Wno-unused-parameter \
         -frtti \
         -DFMT_HEADER_ONLY
-
+        
+ifeq ($(ARMNN_DRIVER_DEBUG),1)
+LOCAL_LDFLAGS += \
+                -Wl,-Map=libarmnnMapFile.map
+endif # ARMNN_DRIVER_DEBUG == 1
 # The variable to enable/disable the CL backend (ARMNN_COMPUTE_CL_ENABLED) is declared in android-nn-driver/Android.mk
 ifeq ($(ARMNN_COMPUTE_CL_ENABLED),1)
 LOCAL_CFLAGS += \