Support Rust builds of some AIDL interfaces.

For now android.hardware.common, android.hardware.common.fmq and
android.hardware.media.bufferpool2. These are prerequisites for
android.hardware.media.c2, which I'm splitting out to a separate CL to
simplify merging.

Bug: 295245772
Test: m android.hardware.common android.hardware.common.fmq android.hardware.media.bufferpool2
Change-Id: I23018cf198ae126ced8358d562fd8e8a7c6e78ad
Merged-In: I1ab9ed45b0b500065c0f18b810c3aa266878b80f

common/aidl/Android.bp

@@ -36,6 +36,9 @@ aidl_interface {
             ],
             min_sdk_version: "29",
         },
+        rust: {
+            enabled: true,
+        },
     },
     frozen: true,
     versions: [

common/fmq/aidl/Android.bp

@@ -37,6 +37,9 @@ aidl_interface {
             ],
             min_sdk_version: "29",
         },
+        rust: {
+            enabled: true,
+        },
     },
     frozen: true,
     versions_with_info: [

media/bufferpool/aidl/Android.bp

@@ -46,5 +46,8 @@ aidl_interface {
             ],
             min_sdk_version: "29",
         },
+        rust: {
+            enabled: true,
+        },
     },
 }