Patch brpc for ARM mac.

bazel/brpc/brpc.patch

@@ -1,4 +1,20 @@
-
+--- src/bvar/default_variables.cpp
++++ src/bvar/default_variables.cpp
+@@ -447,7 +447,13 @@
+     // in MacOS.
+     memset(s, 0, sizeof(ProcIO));
+     static pid_t pid = getpid();
+-    rusage_info_current rusage;
++
++    #ifdef __arm__
++        rusage_info_v4 rusage;
++    #else
++        rusage_info_current rusage;
++    #endif
++
+     if (proc_pid_rusage(pid, RUSAGE_INFO_CURRENT, (void**)&rusage) != 0) {
+         PLOG(WARNING) << "Fail to proc_pid_rusage";
+         return false;
 
 --- BUILD.bazel
 +++ BUILD.bazel