IServiceManager: Improve getService responsiveness in absence of service

Now blocks for 4 seconds worst case instead of 5 seconds.
Some android devices may not have all the normal android phone services.

Test: Wear device on feldspar-dev
Bug: 33086228
Change-Id: Id83fc8cd6b657b53ef78823a460d5fba4a522ab4
diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 2062b3b..3aeff2e 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -135,10 +135,12 @@
     {
         unsigned n;
         for (n = 0; n < 5; n++){
+            if (n > 0) {
+                ALOGI("Waiting for service %s...", String8(name).string());
+                sleep(1);
+            }
             sp<IBinder> svc = checkService(name);
             if (svc != NULL) return svc;
-            ALOGI("Waiting for service %s...\n", String8(name).string());
-            sleep(1);
         }
         return NULL;
     }