Autodetect VDA like all other hardware acccelerations.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 942cded6)

Conflicts:
	configure

Changelog

@@ -28,6 +28,7 @@ version 2.2:
 - Support DNx444
 - libx265 encoder
 - dejudder filter
+- Autodetect VDA like all other hardware accelerations
 
 
 version 2.1:

configure

@@ -149,7 +149,7 @@ Component options:
 Hardware accelerators:
   --disable-dxva2          disable DXVA2 code [autodetect]
   --disable-vaapi          disable VAAPI code [autodetect]
-  --enable-vda             enable VDA code
+  --disable-vda            disable VDA code [autodetect]
   --disable-vdpau          disable VDPAU code [autodetect]
 
 Individual component options:
@@ -2504,7 +2504,7 @@ enable static
 enable swscale_alpha
 
 # Enable hwaccels by default.
-enable dxva2 vaapi vdpau xvmc
+enable dxva2 vaapi vda vdpau xvmc
 
 # build settings
 SHFLAGS='-shared -Wl,-soname,$$(@F)'