Fixed missed change to libOpenCL exclusion flow

Part of "Add flow to exclude libOpenCL when building AndroidNN"

Signed-off-by: alered01 <Alex.Redshaw@arm.com>
Change-Id: I7d57db8a314312d7c160c2759224a54d9bf3d0af
diff --git a/Android.mk b/Android.mk
index 581ce9e..5431a74 100644
--- a/Android.mk
+++ b/Android.mk
@@ -187,7 +187,7 @@
         android.hardware.neuralnetworks@1.3
 endif # R or later
 
-ifeq ($(ARMNN_COMPUTE_CL_ENABLED),1)
+ifeq ($(ARMNN_INCLUDE_LIBOPENCL),1)
 LOCAL_SHARED_LIBRARIES+= \
         libOpenCL
 endif