[libmad] Add aso to default features (#37154)

A small follow-up to #37088, which unintentionally disabled asm
optimizations on non-WASM platforms.

This PR adds `aso` to the set of default features, which should fix
this.

- [x] Changes comply with the [maintainer
guide](https://github.com/microsoft/vcpkg-docs/blob/main/vcpkg/contributing/maintainer-guide.md).
- [x] SHA512s are updated for each updated download.
- [x] The "supports" clause reflects platforms that may be fixed by this
new version.
- [x] Any fixed [CI
baseline](https://github.com/microsoft/vcpkg/blob/master/scripts/ci.baseline.txt)
entries are removed from that file.
- [x] Any patches that are no longer applied are deleted from the port's
directory.
- [x] The version database is fixed by rerunning `./vcpkg x-add-version
--all` and committing the result.
- [x] Only one version is added to each modified port's versions file.

ports/libmad/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "libmad",
   "version": "0.16.4",
-  "port-version": 2,
+  "port-version": 3,
   "description": "high-quality MPEG audio decoder",
   "homepage": "http://codeberg.org/tenacityteam/libmad",
   "dependencies": [
@@ -14,6 +14,12 @@
       "host": true
     }
   ],
+  "default-features": [
+    {
+      "name": "aso",
+      "platform": "x86 | x64 | arm"
+    }
+  ],
   "features": {
     "aso": {
       "description": "Enable CPU architecture-specific optimizations (x86, ARM and MIPS only)",

versions/baseline.json

@@ -4578,7 +4578,7 @@
     },
     "libmad": {
       "baseline": "0.16.4",
-      "port-version": 2
+      "port-version": 3
     },
     "libmagic": {
       "baseline": "5.45",

versions/l-/libmad.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "69c818a7eba6f5da1e09077064ee37a12887ecf0",
+      "version": "0.16.4",
+      "port-version": 3
+    },
     {
       "git-tree": "204aa1729bb363c40a79cbcdb3beab84fa4bd03e",
       "version": "0.16.4",