gh-152711: Add pythoninfo-build command to Platforms/Android

Add a pythoninfo-build command to Platforms/Android to display build
info of the build Python. The command runs "make pythoninfo".

Author: vstinner

Platforms/Android/__main__.py

@@ -207,6 +207,11 @@ def make_build_python(context):
     run(["make", "-j", str(os.cpu_count())])
 
 
+def pythoninfo_build_python(context):
+    os.chdir(subdir("build"))
+    run(["make", "pythoninfo"])
+
+
 # To create new builds of these dependencies, usually all that's necessary is to
 # push a tag to the cpython-android-source-deps repository, and GitHub Actions
 # will do the rest.
@@ -903,6 +908,8 @@ def add_parser(*args, **kwargs):
         "configure-build", help="Run `configure` for the build Python")
     add_parser(
         "make-build", help="Run `make` for the build Python")
+    add_parser(
+        "pythoninfo-build", help="Display build info of the build Python")
     configure_host = add_parser(
         "configure-host", help="Run `configure` for Android")
     make_host = add_parser(
@@ -1019,6 +1026,7 @@ def main():
     dispatch = {
         "configure-build": configure_build_python,
         "make-build": make_build_python,
+        "pythoninfo-build": pythoninfo_build_python,
         "configure-host": configure_host_python,
         "make-host": make_host_python,
         "build": build_targets,