Update Android port

* lisp/frame.el (android-detect-mouse):
* lisp/term/android-win.el (android-get-connection): Add
function declarations.

lisp/frame.el

@@ -2124,6 +2124,7 @@ for FRAME."
 ;; or in https://debbugs.gnu.org/cgi/bugreport.cgi?bug=35058#17.
 
 (declare-function msdos-mouse-p "dosfns.c")
+(declare-function android-detect-mouse "androidfns.c")
 
 (defun display-mouse-p (&optional display)
   "Return non-nil if DISPLAY has a mouse available.

lisp/term/android-win.el

@@ -41,6 +41,8 @@
 
 (add-to-list 'display-format-alist '(".*" . android))
 
+(declare-function android-get-connection "androidfns.c")
+
 ;; Window system initialization.  This is extremely simple because all
 ;; initialization is done in android_term_init.