[opt](reader) Use memchr to speed up BaseTextLineReaderContext.find_lf_crlf_line_sep function (#54957)

### What problem does this PR solve?

Use memchr to speed up BaseTextLineReaderContext.find_lf_crlf_line_sep
function.

---------

Co-authored-by: Zhiguo Wu <wuzhiguo@linaro.org>

run-be-ut.sh

@@ -211,6 +211,10 @@ if [[ -z "${USE_AVX2}" ]]; then
     USE_AVX2='ON'
 fi
 
+if [[ -z "${ARM_MARCH}" ]]; then
+    ARM_MARCH='armv8-a+crc'
+fi
+
 if [[ -z "${USE_UNWIND}" ]]; then
     if [[ "$(uname -s)" != 'Darwin' ]]; then
         USE_UNWIND='ON'
@@ -242,6 +246,7 @@ cd "${CMAKE_BUILD_DIR}"
     -DUSE_UNWIND="${USE_UNWIND}" \
     -DUSE_JEMALLOC=OFF \
     -DUSE_AVX2="${USE_AVX2}" \
+    -DARM_MARCH="${ARM_MARCH}" \
     -DEXTRA_CXX_FLAGS="${EXTRA_CXX_FLAGS}" \
     -DENABLE_CLANG_COVERAGE="${DENABLE_CLANG_COVERAGE}" \
     ${CMAKE_USE_CCACHE:+${CMAKE_USE_CCACHE}} \