Compile slf4j-jdk14 for the host

It's needed by kotlinx_atomicfu_transformer.

Bug: 141779475
Test: m checkbuild
Change-Id: Id6a344c2618cbe66f3c1b63c4645d3526d53d104
diff --git a/Android.bp b/Android.bp
index acd6e40..09f2cb3 100644
--- a/Android.bp
+++ b/Android.bp
@@ -16,6 +16,7 @@
 
 java_library {
     name: "slf4j-jdk14",
+    host_supported: true,
     hostdex: true,
     srcs: [
         "slf4j-api/src/main/**/*.java",