IVGCVSW-3595 Implement the LoadDynamicBackends function in the Runtime class

 * Updated the makefiles to include boost::filesystem

!armnn:1702

Change-Id: Ibe0a696d9fd473b552602266a89465289e9dc043
Signed-off-by: Matteo Martincigh <matteo.martincigh@arm.com>
diff --git a/Android.mk b/Android.mk
index bee57dd..aeea704 100644
--- a/Android.mk
+++ b/Android.mk
@@ -124,6 +124,7 @@
         libboost_program_options \
         libboost_system \
         libboost_thread \
+        libboost_filesystem \
         armnn-arm_compute
 
 LOCAL_WHOLE_STATIC_LIBRARIES := libarmnn
@@ -237,6 +238,7 @@
         libboost_program_options \
         libboost_system \
         libboost_thread \
+        libboost_filesystem \
         armnn-arm_compute
 
 LOCAL_WHOLE_STATIC_LIBRARIES := libarmnn
@@ -343,6 +345,7 @@
         libboost_program_options \
         libboost_system \
         libboost_thread \
+        libboost_filesystem \
         armnn-arm_compute
 
 LOCAL_WHOLE_STATIC_LIBRARIES := libarmnn
@@ -418,6 +421,7 @@
         libboost_program_options \
         libboost_system \
         libboost_thread \
+        libboost_filesystem \
         armnn-arm_compute
 
 LOCAL_WHOLE_STATIC_LIBRARIES := \
@@ -508,6 +512,7 @@
         libboost_program_options \
         libboost_system \
         libboost_thread \
+        libboost_filesystem \
         armnn-arm_compute
 
 LOCAL_WHOLE_STATIC_LIBRARIES := \
@@ -586,6 +591,7 @@
         libboost_program_options \
         libboost_system \
         libboost_thread \
+        libboost_filesystem \
         armnn-arm_compute
 
 LOCAL_WHOLE_STATIC_LIBRARIES := \