Update CMakeLists.txt (#6840)

inference-engine/samples/CMakeLists.txt

@@ -87,6 +87,10 @@ if(APPLE)
     set(CMAKE_MACOSX_RPATH ON)
 endif()
 
+if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "^(arm.*|ARM.*)" AND NOT CMAKE_CROSSCOMPILING)
+    add_compile_options(-march=armv7-a)
+endif()
+
 set(CMAKE_POLICY_DEFAULT_CMP0063 NEW)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 set(CMAKE_CXX_VISIBILITY_PRESET hidden)