move qnn backend into sub folder

tests/ggml-qnn/CMakeLists.txt

@@ -13,17 +13,17 @@ set(QNN_INC_PATH                    ${QNN_SDK_PATH}/include/QNN)
 set(QNN_LIB_PATH                    ${QNN_SDK_PATH}/lib/aarch64-android)
 
 include_directories(${QNN_INC_PATH})
-include_directories(../../)  # ggml.h
+include_directories(../../ggml/include)  # ggml.h, ggml-qnn.h
 
 set(SOURCE_FILES
-        ../../ggml.c
+    ../../ggml/src/ggml.c
-        ../../ggml-alloc.c
+    ../../ggml/src/ggml-alloc.c
-        ../../ggml-backend.c
+    ../../ggml/src/ggml-backend.c
-        ../../ggml-quants.c
+    ../../ggml/src/ggml-quants.c
-        ../../ggml-qnn/logger.cpp
+    ../../ggml/src/ggml-qnn/logger.cpp
-        ../../ggml-qnn/utils.cpp
+    ../../ggml/src/ggml-qnn/utils.cpp
-        ../../ggml-qnn/backend-ops.cpp
+    ../../ggml/src/ggml-qnn/backend-ops.cpp
-        ../../ggml-qnn.cpp
+    ../../ggml/src/ggml-qnn.cpp
     ggml-qnn-ut.cpp
 )
 
@@ -47,11 +47,9 @@ if (TARGET_SNAPDRAGON_8_GEN3)
     add_definitions(-march=armv8.7-a)
     add_definitions(-mcpu=cortex-x1)
     add_definitions(-mtune=cortex-x1)
-
 else()
     # the below build optimization might be works well on ALL Android phone equipped with Qualcomm mainstream mobile SoC
     add_definitions(-mcpu=cortex-a72)
-
 endif()
 
 add_compile_options("-Wall" "-Wno-sign-compare")