Rename VirtualTouchpadService to IVirtualTouchpadService

aidl compiler no longer force prepend I when the interface name does not
start with I.

Bug: 129549755
Test: m libvirtualtouchpadclient
Change-Id: I973b5138d671fb842160d2795caa1c8eb977f642
diff --git a/services/vr/virtual_touchpad/Android.bp b/services/vr/virtual_touchpad/Android.bp
index 0263481..131a306 100644
--- a/services/vr/virtual_touchpad/Android.bp
+++ b/services/vr/virtual_touchpad/Android.bp
@@ -62,7 +62,7 @@
 service_src = [
     "main.cpp",
     "VirtualTouchpadService.cpp",
-    "aidl/android/dvr/VirtualTouchpadService.aidl",
+    "aidl/android/dvr/IVirtualTouchpadService.aidl",
 ]
 
 service_static_libs = [
@@ -99,7 +99,7 @@
 client_src = [
     "VirtualTouchpadClient.cpp",
     "DvrVirtualTouchpadClient.cpp",
-    "aidl/android/dvr/VirtualTouchpadService.aidl",
+    "aidl/android/dvr/IVirtualTouchpadService.aidl",
 ]
 
 client_shared_libs = [