crop: make the filter accept PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats

Signed-off-by: Anton Khirnov <anton@khirnov.net>

libavfilter/vf_crop.c

@@ -80,6 +80,7 @@ static int query_formats(AVFilterContext *ctx)
 {
     static const enum PixelFormat pix_fmts[] = {
         PIX_FMT_RGB48BE,      PIX_FMT_RGB48LE,
+        PIX_FMT_BGR48BE,      PIX_FMT_BGR48LE,
         PIX_FMT_ARGB,         PIX_FMT_RGBA,
         PIX_FMT_ABGR,         PIX_FMT_BGRA,
         PIX_FMT_RGB24,        PIX_FMT_BGR24,

tests/ref/lavfi/pixfmts_crop_le

 abgr                cd761690872843d1b7ab0c695393c751
 argb                2ec6ef18769bcd651c2e8904d5a3ee67
 bgr24               3450fd00cf1493d1ded75544d82ba3ec
+bgr48be             90cb5d373a1123432d63c6a10c101afa
+bgr48le             9371f54ceda9010f1199e86f4930ac3f
 bgr4_byte           2f6ac3cdd4676ab4e2982bdf0664945b
 bgr555le            d22442fc13b464f9ba455b08df4e981f
 bgr565le            891664e5a54ae5968901347da92bc5e9