Update tensorflow commit to pick latest changes. (#23895)

Author: bgogul

utils/build-script-impl

@@ -2444,10 +2444,12 @@ for host in "${ALL_HOSTS[@]}"; do
                     # problematic for overwriting/stripping symbols. Thus, write
                     # permission is added here.
                     for lib_name in tensorflow tensorflow_framework; do
-                        lib="lib${lib_name}.so"
+                        lib="lib${lib_name}.so*"
+                        dylib="lib${lib_name}*.dylib"
                         rm -f "${TF_LIB_DIR}/${lib}"
-                        chmod +w "${TENSORFLOW_HOST_LIB_DIR}/${lib}"
-                        cp -p "${TENSORFLOW_HOST_LIB_DIR}/${lib}" "${TF_LIB_DIR}"
+                        rm -f "${TF_LIB_DIR}/${dylib}"
+                        find "${TENSORFLOW_HOST_LIB_DIR}" \( -name "${lib}" -o -name "${dylib}" \) -exec chmod +w {} +
+                        find "${TENSORFLOW_HOST_LIB_DIR}" \( -name "${lib}" -o -name "${dylib}" \) -exec cp -p {} "${TF_LIB_DIR}" \;
                     done
 
                     if [[ ! "${TENSORFLOW_TARGET_LIB_DIR}" ]] ; then
@@ -3828,10 +3830,10 @@ for host in "${ALL_HOSTS[@]}"; do
                 mkdir -p "${TF_DEST_DIR}"
                 for lib_name in tensorflow tensorflow_framework
                 do
-                    lib="lib${lib_name}.so"
+                    lib="lib${lib_name}.so*"
+                    dylib="lib${lib_name}*.dylib"
                     echo "${TF_LIBDIR}/${lib} => ${TF_DEST_DIR}"
-                    rm -f "${TF_DEST_DIR}/${lib}"
-                    cp -a "${TF_LIBDIR}/${lib}" "${TF_DEST_DIR}"
+                    find "${TF_LIBDIR}" \( -name "${lib}" -o -name "${dylib}" \) -exec cp -a {} "${TF_DEST_DIR}" \;
                 done
                 continue
                 ;;

utils/update_checkout/update-checkout-config.json

@@ -240,7 +240,7 @@
                 "swift-xcode-playground-support": "swift-DEVELOPMENT-SNAPSHOT-2018-11-26-a",
                 "ninja": "253e94c1fa511704baeb61cf69995bbf09ba435e",
                 "icu": "release-61-1",
-                "tensorflow": "5e8df789cc30098d791475c14a623ec68b50b4ed",
+                "tensorflow": "6c71cb2d20026c574d409539d25dbcd6f58f6990",
                 "tensorflow-swift-bindings": "0957744551614e433dbabc725cba29ff5ddb91d3",
                 "tensorflow-swift-apis": "5caa4600e0796cc04dc755f7d7c4befe7bd336cd"
             }