By default don't try to use pkg-config when targeting Android

It causes issues in our Windows CI, because the strawberry perl
pkg-config is found. And even that one is unusable, due to a bug in
CMake which is tracked at
https://gitlab.kitware.com/cmake/cmake/-/issues/21239

Change-Id: I58816195d35459e8a44c923399c35a4956c222a2
Reviewed-by: Simon Hausmann <hausmann@gmail.com>

cmake/QtBuildInternals/QtBuildInternalsConfig.cmake

@@ -72,7 +72,7 @@ function(qt_build_internals_disable_pkg_config_if_needed)
     set(pkg_config_enabled ON)
     qt_build_internals_find_pkg_config_executable()
 
-    if(APPLE OR WIN32 OR QNX OR (NOT PKG_CONFIG_EXECUTABLE))
+    if(APPLE OR WIN32 OR QNX OR ANDROID OR (NOT PKG_CONFIG_EXECUTABLE))
         set(pkg_config_enabled OFF)
     endif()
 

configure.cmake

@@ -433,7 +433,7 @@ qt_feature("optimize_size"
 qt_feature_config("optimize_size" QMAKE_PRIVATE_CONFIG)
 qt_feature("pkg-config" PUBLIC
     LABEL "Using pkg-config"
-    AUTODETECT NOT APPLE AND NOT WIN32
+    AUTODETECT NOT APPLE AND NOT WIN32 AND NOT ANDROID
     CONDITION PKG_CONFIG_FOUND
 )
 qt_feature_config("pkg-config" QMAKE_PUBLIC_QT_CONFIG

configure.json

@@ -753,7 +753,7 @@
         },
         "pkg-config": {
             "label": "Using pkg-config",
-            "autoDetect": "!config.darwin && !config.win32",
+            "autoDetect": "!config.darwin && !config.win32 && !config.android",
             "condition": "tests.pkg-config",
             "output": [
                 "publicFeature",