mpv: Remove X11 dependency

During enable mpv which is based on wayland.
The mpv reqired x11 by default even if mpv support wayland.
Change the depend rules and chang the x11 dectection policy.
After this change, mpv could be build and run successfully based
on wayland

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-multimedia/mplayer/mpv_0.32.0.bb

@@ -2,11 +2,12 @@ SUMMARY = "Open Source multimedia player"
 DESCRIPTION = "mpv is a fork of mplayer2 and MPlayer. It shares some features with the former projects while introducing many more."
 SECTION = "multimedia"
 HOMEPAGE = "http://www.mpv.io/"
-DEPENDS = "zlib ffmpeg jpeg virtual/libx11 xsp libxv \
-           libxscrnsaver libv4l libxinerama \
-"
 
-REQUIRED_DISTRO_FEATURES = "x11"
+DEPENDS = "zlib ffmpeg jpeg libv4l"
+
+DEPENDS += " \
+    ${@bb.utils.contains('DISTRO_FEATURES', 'x11', ' virtual/libx11 xsp libxv libxscrnsaver libxinerama', '', d)} \
+"
 
 LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://LICENSE.GPL;md5=91f1cb870c1cc2d31351a4d2595441cb"