Replace System V termio.h with POSIX termios.h for musl
Upstream: https://github.com/linux-pam/linux-pam/pull/576
Bug: https://bugs.gentoo.org/906137

From 5658105b04ad4df212baf302898ee2cca99516a6 Mon Sep 17 00:00:00 2001
From: Violet Purcell <vimproved@inventati.org>
Date: Thu, 11 May 2023 10:27:53 -0400
Subject: [PATCH] fix build on musl

--- a/examples/tty_conv.c
+++ b/examples/tty_conv.c
@@ -6,8 +6,9 @@
 #include <string.h>
 #include <errno.h>
 #include <unistd.h>
-#include <termio.h>
+#include <termios.h>
 #include <security/pam_appl.h>
+#include <sys/ioctl.h>
 
 /***************************************
  * @brief echo off/on
@@ -16,7 +17,7 @@
  ***************************************/
 static void echoOff(int fd, int off)
 {
-    struct termio tty;
+    struct termios tty;
     if (ioctl(fd, TCGETA, &tty) < 0)
     {
         fprintf(stderr, "TCGETA failed: %s\n", strerror(errno));
-- 
2.40.1