Add vendor_available:true

Bug: 33241851
Test: Build sailfish with BOARD_VNDK_VERSION:=current

(cherry picked from commit e6ec7268b1488d2bff1d54cd00b52e82f867c075)

Merged-In: Ic14aec6428bc95db6698413761500b279de77fc8
Change-Id: I931745b7a79275c6c51c4f7d83eeb4da79542f33
diff --git a/Android.bp b/Android.bp
index 6850fbe..7329391 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,6 +1,7 @@
 cc_library {
     name: "libtinyalsa",
     host_supported: true,
+    vendor_available: true,
     srcs: [
         "mixer.c",
         "pcm.c",