Rename ArmNN schema file to ArmnnSchema.fbs

This makes the header file change to ArmnnSchema_generated.h,
which is then unambiguous with respect to other generated schema files.

Change-Id: Id7785ed74cced4dcd4d6bcbab81e53c6aeba973c
Signed-off-by: Matthew Bentham <matthew.bentham@arm.com>
diff --git a/cmake/GlobalConfig.cmake b/cmake/GlobalConfig.cmake
index ad48693..e0ccce4 100644
--- a/cmake/GlobalConfig.cmake
+++ b/cmake/GlobalConfig.cmake
@@ -198,7 +198,7 @@
 if(BUILD_ARMNN_SERIALIZER)
     include_directories(SYSTEM "${FLATBUFFERS_INCLUDE_PATH}")
     add_definitions(-DARMNN_SERIALIZER)
-    add_definitions(-DARMNN_SERIALIZER_SCHEMA_PATH="${CMAKE_CURRENT_SOURCE_DIR}/src/armnnSerializer/Schema.fbs")
+    add_definitions(-DARMNN_SERIALIZER_SCHEMA_PATH="${CMAKE_CURRENT_SOURCE_DIR}/src/armnnSerializer/ArmnnSchema.fbs")
 endif()
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)