[mfx-dispatch] Fix pkgconfig lib syntax (#34196)

Fixes building ffmpeg[qsv] on Windows

ports/mfx-dispatch/fix-pkgconf.patch

@@ -33,7 +33,7 @@ index fabb541..5d248fe 100644
  Requires.private:
  Conflicts:
 -Libs: -L${libdir} -lsupc++ ${libdir}/libmfx.lib
-+Libs: -L${libdir} ${libdir}/libmfx.lib
++Libs: -L${libdir} -llibmfx
  Libs.private:
 -Cflags: -I${includedir} -I@INTELMEDIASDK_PATH@
 +Cflags: -I${includedir}

ports/mfx-dispatch/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "mfx-dispatch",
   "version": "1.35.1",
-  "port-version": 2,
+  "port-version": 3,
   "description": "Open source Intel media sdk dispatcher",
   "homepage": "https://github.com/lu-zero/mfx_dispatch",
   "license": "BSD-3-Clause",

versions/baseline.json

@@ -5386,7 +5386,7 @@
     },
     "mfx-dispatch": {
       "baseline": "1.35.1",
-      "port-version": 2
+      "port-version": 3
     },
     "mgnlibs": {
       "baseline": "2019-09-29",

versions/m-/mfx-dispatch.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "4372c27465a70b6b113adc8fb69ea86da3c21a3f",
+      "version": "1.35.1",
+      "port-version": 3
+    },
     {
       "git-tree": "07eb6cc5ee276c7e965868d1cb6de113d41e0e41",
       "version": "1.35.1",