first_stage_console: Address compiler warning

Re-order the fields in the declaration to address the following

  ISO C++ requires field designators to be specified in declaration order;
  field 'sigaction::(anonymous union at bionic/libc/include/bits/signal_types.h:76:20)'
  will be initialized after field 'sa_flags' [-Wreorder-init-list]

Test: TH
Change-Id: I3f1d4739f1677aad50d4f07361aa264da43bdd13
diff --git a/init/first_stage_console.cpp b/init/first_stage_console.cpp
index 67cac19..c6c3008 100644
--- a/init/first_stage_console.cpp
+++ b/init/first_stage_console.cpp
@@ -86,7 +86,9 @@
 void StartConsole(const std::string& cmdline) {
     bool console = KernelConsolePresent(cmdline);
     // Use a simple sigchld handler -- first_stage_console doesn't need to track or log zombies
-    const struct sigaction chld_act { .sa_handler = SIG_DFL, .sa_flags = SA_NOCLDWAIT };
+    const struct sigaction chld_act {
+        .sa_flags = SA_NOCLDWAIT, .sa_handler = SIG_DFL
+    };
 
     sigaction(SIGCHLD, &chld_act, nullptr);
     pid_t pid = fork();