Build more benchmarks in workload XNNPACK (#2417)

Build 3 more benchmarks in workload XNNPACK and fix a typo.

samples/workload/XNNPACK/CMakeLists.txt

@@ -46,8 +46,8 @@ list(APPEND NATIVE_BENCHMARKS
   "f32_igemm_bench"
   "f32_conv_hwc_bench"
   "f16_conv_hwc2chw_bench"
-#   "f16_gavgpool_cw_bench"
-#   "f32_gavgpool_cw_bench"
+  "f16_gavgpool_cw_bench"
+  "f32_gavgpool_cw_bench"
   "f32_conv_hwc2chw_bench"
   "f16_dwconv_bench"
   "f32_dwconv_bench"
@@ -126,7 +126,7 @@ list(APPEND NATIVE_BENCHMARKS
   "qs8_gemm_e2e_bench"
   "qu8_gemm_e2e_bench"
   "qu8_dwconv_e2e_bench"
-#   "end2end_bench"
+  "end2end_bench"
   "f16_exp_ulp_eval"
   "f16_expminus_ulp_eval"
   "f16_expm1minus_ulp_eval"

samples/workload/XNNPACK/README.md

@@ -44,6 +44,6 @@ Then run:
 
 ``` shell
 $ cd <wamr-dir>/samples/workload/XNNPACK/build
-$ iwasm averag_pooling_bench.aot # (or other aot files)
+$ iwasm average_pooling_bench.aot # (or other aot files)
 ```