emacs: Backport bugfix for clicks in the modeline

See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=29104 and #1910.

packages/emacs/build.sh

@@ -1,7 +1,7 @@
 TERMUX_PKG_HOMEPAGE=https://www.gnu.org/software/emacs/
 TERMUX_PKG_DESCRIPTION="Extensible, customizable text editor-and more"
 TERMUX_PKG_VERSION=25.3
-TERMUX_PKG_REVISION=0
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SHA256=253ac5e7075e594549b83fd9ec116a9dc37294d415e2f21f8ee109829307c00b
 TERMUX_PKG_SRCURL=https://mirrors.kernel.org/gnu/emacs/emacs-${TERMUX_PKG_VERSION}.tar.xz
 TERMUX_PKG_DEPENDS="ncurses, gnutls, libxml2"

packages/emacs/src-keyboard.c.patch

@@ -0,0 +1,22 @@
+https://github.com/emacs-mirror/emacs/commit/18b235941109ab9e7a405cbe950886c97e897e11
+
+diff --git a/src/keyboard.c b/src/keyboard.c
+index 57757cf2112..f32b1560133 100644
+--- a/src/keyboard.c
++++ b/src/keyboard.c
+@@ -8916,7 +8916,6 @@ read_key_sequence (Lisp_Object *keybuf, int bufsize, Lisp_Object prompt,
+   ptrdiff_t keys_start;
+ 
+   Lisp_Object current_binding = Qnil;
+-  Lisp_Object first_event = Qnil;
+ 
+   /* Index of the first key that has no binding.
+      It is useless to try fkey.start larger than that.  */
+@@ -9026,6 +9025,7 @@ read_key_sequence (Lisp_Object *keybuf, int bufsize, Lisp_Object prompt,
+ 
+   starting_buffer = current_buffer;
+   first_unbound = bufsize + 1;
++  Lisp_Object first_event = mock_input > 0 ? keybuf[0] : Qnil;
+ 
+   /* Build our list of keymaps.
+      If we recognize a function key and replace its escape sequence in