kwin: fix build

Added src/ to add patch because it's in kwin's master.

srcpkgs/kwin/patches/musl.patch

@@ -1,4 +1,4 @@
---- 3rdparty/xcursor.c	2020-09-19 14:34:54.765245866 +0200
+--- src/3rdparty/xcursor.c	2020-09-19 14:34:54.765245866 +0200
 +++ -	2020-09-19 14:35:18.599411888 +0200
 @@ -27,6 +27,7 @@
  #include <stdio.h>

srcpkgs/kwin/patches/posix-sockaddr.patch

@@ -0,0 +1,19 @@
+--- src/helpers/wayland_wrapper/wl-socket.c
++++ src/helpers/wayland_wrapper/wl-socket.c
+@@ -8,6 +8,7 @@
+     SPDX-License-Identifier: GPL-2.0-or-later
+ */
+ 
++#define _BSD_SOURCE
+ #include <assert.h>
+ #include <errno.h>
+ #include <fcntl.h>
+@@ -155,7 +156,7 @@ struct wl_socket *wl_socket_create()
+         s->fd = socket(PF_LOCAL, SOCK_STREAM, 0);
+ 
+         int size = SUN_LEN(&s->addr);
+-        int ret = bind(s->fd, &s->addr, size);
++        int ret = bind(s->fd, (struct sockaddr*)&s->addr, size);
+         if (ret < 0) {
+             goto fail;
+         }

srcpkgs/kwin/template

@@ -17,6 +17,7 @@ license="GPL-2.0-or-later"
 homepage="https://invent.kde.org/plasma/kwin"
 distfiles="${KDE_SITE}/plasma/${version}/${pkgname}-${version}.tar.xz"
 checksum=5a044450ffdc1610a73d5db3f3f50d2513de930f4be5c167da703cc7d23abc0c
+patch_args=-Np1
 
 build_options="pipewire"