libkeymint_support: Make it vendor accessiable

This support function is supposed to be useable by vendor in treble.
Add "vendor_available" to reflect that.

Bug: 203481954
Test: Link by vendor successfully
Change-Id: I9709ac0ab79405c336ed8a1bc44b2ef643dd5b2d

security/keymint/support/Android.bp

@@ -25,6 +25,7 @@ package {
 
 cc_library {
     name: "libkeymint_support",
+    vendor_available: true,
     cflags: [
         "-Wall",
         "-Wextra",
@@ -44,6 +45,7 @@ cc_library {
         "libbase",
         "libcrypto",
         "libutils",
+        "libhardware",
     ],
 }