Update build tools version for N MR1 samples

Version should be '25.0.0' instead of '25 rc1'.

Change-Id: I975412dc54326292832656511148506ec8b6c855
diff --git a/input/keyboard/CommitContentSampleApp/app/build.gradle b/input/keyboard/CommitContentSampleApp/app/build.gradle
index f46fe08..fcaa562 100644
--- a/input/keyboard/CommitContentSampleApp/app/build.gradle
+++ b/input/keyboard/CommitContentSampleApp/app/build.gradle
@@ -2,7 +2,7 @@
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25 rc1"
+    buildToolsVersion "25.0.0"
     defaultConfig {
         applicationId "com.example.android.android.sampleapp"
         minSdkVersion 16
diff --git a/input/keyboard/CommitContentSampleIME/app/build.gradle b/input/keyboard/CommitContentSampleIME/app/build.gradle
index 0b33296..7856e5d 100644
--- a/input/keyboard/CommitContentSampleIME/app/build.gradle
+++ b/input/keyboard/CommitContentSampleIME/app/build.gradle
@@ -2,7 +2,7 @@
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25 rc1"
+    buildToolsVersion "25.0.0"
     defaultConfig {
         applicationId "com.example.android.supportv13.sampleime"
         minSdkVersion 16
diff --git a/system/AppShortcuts/app/build.gradle b/system/AppShortcuts/app/build.gradle
index e7b94e7..68dc6a7 100644
--- a/system/AppShortcuts/app/build.gradle
+++ b/system/AppShortcuts/app/build.gradle
@@ -2,7 +2,7 @@
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25 rc1"
+    buildToolsVersion "25.0.0"
 
     defaultConfig {
         applicationId "com.example.android.shortcutsample"