Expose .rc/.xml for CF gralloc apex

Bug: 312358547
Test: allocator HAL service works from CF
Change-Id: I0d7a58b23af1150a98856be7ad4ffc1e1efb42b8

cros_gralloc/aidl/Android.bp

@@ -49,3 +49,15 @@ cc_binary {
         "Main.cpp",
     ],
 }
+
+filegroup {
+    name: "allocator.minigbm.rc",
+    srcs: ["allocator.rc"]
+}
+
+prebuilt_etc {
+    name: "allocator.minigbm.xml",
+    src: "allocator.xml",
+    sub_dir: "vintf",
+    installable: false,
+}

cros_gralloc/mapper_stablec/Android.bp

@@ -42,3 +42,10 @@ cc_library_shared {
     ],
     cpp_std: "c++20",
 }
+
+prebuilt_etc {
+    name: "mapper.minigbm.xml",
+    src: "mapper.minigbm.xml",
+    sub_dir: "vintf",
+    installable: false,
+}