use aliased //external/guava target

Guava has a new alias to provide the host JRE version or the Android
device version depending on the Bazel configuration of the dependency
edge that requires it.

Bug: 215229742
Test: b build //packages/apps/QuickSearchBox
Change-Id: I6008a479074a7e097342fe109e776bc7594885d9
diff --git a/BUILD b/BUILD
index d4d3090..bf2faed 100644
--- a/BUILD
+++ b/BUILD
@@ -17,7 +17,7 @@
     resource_files = glob(["res/**"]),
     deps = [
         ":genlogtags",
-        "//external/guava:guava-android-host",
+        "//external/guava",
         "//frameworks/ex/common:android-common",
     ],
 )