Empty APIs for SupplementalApi module.

Required for ag/16374377
Bug: 205850488
Test: mmm -j packages/modules/SupplementalApi

Change-Id: I378536c7d5d8bd8e74c42c9cbfe52f28de8351e3

Android.bp

@@ -155,6 +155,7 @@ java_library {
         "framework-scheduling.stubs.module_lib",
         "framework-sdkextensions.stubs.module_lib",
         "framework-statsd.stubs.module_lib",
+        "framework-supplementalapi.stubs.module_lib",
         "framework-supplementalprocess.stubs.module_lib",
         "framework-tethering.stubs.module_lib",
         "framework-uwb.stubs.module_lib",
@@ -179,6 +180,7 @@ java_library {
         "framework-scheduling.impl",
         "framework-sdkextensions.impl",
         "framework-statsd.impl",
+        "framework-supplementalapi.impl",
         "framework-supplementalprocess.impl",
         "framework-tethering.impl",
         "framework-uwb.impl",

StubLibraries.bp

@@ -250,6 +250,7 @@ modules_public_stubs = [
     "framework-scheduling.stubs",
     "framework-sdkextensions.stubs",
     "framework-statsd.stubs",
+    "framework-supplementalapi.stubs",
     "framework-supplementalprocess.stubs",
     "framework-tethering.stubs",
     "framework-uwb.stubs",
@@ -272,6 +273,7 @@ modules_system_stubs = [
     "framework-scheduling.stubs.system",
     "framework-sdkextensions.stubs.system",
     "framework-statsd.stubs.system",
+    "framework-supplementalapi.stubs",
     "framework-supplementalprocess.stubs",
     "framework-tethering.stubs.system",
     "framework-uwb.stubs.system",