Reduce the coldboot timeout to 1s.

5s was already a ridiculously long time to delay booting, and some OEMs are
trying to make it even more insane:

  https://www.codeaurora.org/cgit/quic/la/platform/system/core/commit/?h=lp&id=fd23edd48272976d2fb333f377242173f92aa343

Let's at least ensure that Nexus and Android One devices don't take forever
to boot...

Bug: http://b/19899875
Change-Id: I9680c166a759360f34118e51cd0645e12b6bd5c8
(cherry picked from commit c7331d02d1c6b1e51b3a1210506f38fd61819495)
diff --git a/init/init.cpp b/init/init.cpp
index dd74538..5185f77 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -618,7 +618,10 @@
     Timer t;
 
     NOTICE("Waiting for %s...\n", COLDBOOT_DONE);
-    if (wait_for_file(COLDBOOT_DONE, COMMAND_RETRY_TIMEOUT)) {
+    // Any longer than 1s is an unreasonable length of time to delay booting.
+    // If you're hitting this timeout, check that you didn't make your
+    // sepolicy regular expressions too expensive (http://b/19899875).
+    if (wait_for_file(COLDBOOT_DONE, 1)) {
         ERROR("Timed out waiting for %s\n", COLDBOOT_DONE);
     }