Update setup-with-qnn.sh (#4943)

Add flags for:
1. Executorch to use tiktoken
2. Quantized kernels
3. Custom kernels

Fix the build error

Author: WuhanMonkey

examples/demo-apps/android/LlamaDemo/setup-with-qnn.sh

@@ -8,13 +8,15 @@
 set -eu
 
 CMAKE_OUT="${CMAKE_OUT:-cmake-out-android}"
+EXECUTORCH_USE_TIKTOKEN="${EXECUTORCH_USE_TIKTOKEN:-OFF}"
 # Note: Set up ANDROID_NDK and ANDROID_ABI
 cmake . -DCMAKE_INSTALL_PREFIX="${CMAKE_OUT}" \
   -DCMAKE_TOOLCHAIN_FILE="${ANDROID_NDK}/build/cmake/android.toolchain.cmake" \
   -DANDROID_ABI="${ANDROID_ABI}" \
   -DEXECUTORCH_BUILD_XNNPACK=ON \
   -DEXECUTORCH_BUILD_EXTENSION_DATA_LOADER=ON \
   -DEXECUTORCH_BUILD_EXTENSION_MODULE=ON \
+  -DEXECUTORCH_BUILD_KERNELS_QUANTIZED=ON \
   -DEXECUTORCH_BUILD_KERNELS_OPTIMIZED=ON \
   -DEXECUTORCH_BUILD_QNN=ON \
   -DQNN_SDK_ROOT="${QNN_SDK_ROOT}" \
@@ -32,6 +34,7 @@ cmake examples/models/llama2 \
          -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake \
          -DANDROID_ABI="$ANDROID_ABI" \
          -DCMAKE_INSTALL_PREFIX="${CMAKE_OUT}" \
+         -DEXECUTORCH_BUILD_KERNELS_CUSTOM=ON \
          -DCMAKE_BUILD_TYPE=Release \
          -B"${CMAKE_OUT}"/examples/models/llama2