Bump minSdkVersion to API 14.

First step in moving minSdkVersion to API 14 for support library.

Bug: 32794064
Test: gradlew clean assemble assembleAndroidTest still works
Change-Id: I113834cc6e3c088cdf606a86fe7a35faa192b801
diff --git a/v7/appcompat/build.gradle b/v7/appcompat/build.gradle
index 8127c3b..6c07265 100644
--- a/v7/appcompat/build.gradle
+++ b/v7/appcompat/build.gradle
@@ -23,7 +23,7 @@
     compileSdkVersion project.ext.currentSdk
 
     defaultConfig {
-        minSdkVersion 9
+        minSdkVersion 14
         // This disables the builds tools automatic vector -> PNG generation
         generatedDensities = []
     }