Enable LTO for Android build (microsoft#21243)

### Description
Enable LTO for Android build, which can reduce binary size by 6%.

Author: snnn

tools/ci_build/github/android/default_full_aar_build_settings.json

@@ -8,6 +8,7 @@
     "android_min_sdk_version": 21,
     "android_target_sdk_version": 24,
     "build_params": [
+        "--enable_lto",
         "--android",
         "--parallel",
         "--cmake_generator=Ninja",

tools/ci_build/github/android/training_full_aar_build_settings.json

@@ -8,6 +8,7 @@
     "android_min_sdk_version": 21,
     "android_target_sdk_version": 24,
     "build_params": [
+        "--enable_lto",
         "--android",
         "--parallel",
         "--cmake_generator=Ninja",

tools/ci_build/github/azure-pipelines/android-x86_64-crosscompile-ci-pipeline.yml

@@ -85,6 +85,7 @@ stages:
 
     - script: |
         python3 tools/ci_build/build.py \
+          --enable_lto \
           --android \
           --build_dir build \
           --android_sdk_path $ANDROID_HOME \
@@ -169,6 +170,7 @@ stages:
 
     - script: |
         python3 tools/ci_build/build.py \
+          --enable_lto \
           --android \
           --build_dir build_nnapi \
           --android_sdk_path $ANDROID_HOME \
@@ -264,6 +266,7 @@ stages:
 
       - script: |
           python3 tools/ci_build/build.py \
+          --enable_lto \
           --android \
           --build_dir build \
           --android_sdk_path $ANDROID_HOME \
@@ -329,6 +332,7 @@ stages:
 
       - script: |
           python3 tools/ci_build/build.py \
+          --enable_lto \
           --android \
           --build_dir build_nnapi \
           --android_sdk_path $ANDROID_HOME \
@@ -401,6 +405,7 @@ stages:
 
       - script: |
           python3 tools/ci_build/build.py \
+          --enable_lto \
           --android \
           --build_dir build_nnapi \
           --android_sdk_path $ANDROID_HOME \

tools/ci_build/github/linux/ort_minimal/build_check_binsize_config/android_minimal_baseline.config

@@ -3,6 +3,7 @@
     "os": "android",
     "arch": "arm64-v8a",
     "build_params": [
+        "--enable_lto",
         "--android",
         "--android_sdk_path=/android_home",
         "--android_ndk_path=/ndk_home",

tools/ci_build/github/linux/ort_minimal/build_check_binsize_config/android_minimal_with_mobile_package_ops.config

@@ -3,6 +3,7 @@
     "os": "android",
     "arch": "arm64-v8a",
     "build_params": [
+        "--enable_lto",
         "--android",
         "--android_sdk_path=/android_home",
         "--android_ndk_path=/ndk_home",