Partially revert "avcodec/hapqa_extract: remove the AVOption flags

Re add AVOptions flags, using the new one meant for bsfs.
This partially reverts commit f706cdda.
Signed-off-by: James Almer <jamrial@gmail.com>

libavcodec/hapqa_extract_bsf.c

@@ -110,10 +110,11 @@ static const enum AVCodecID codec_ids[] = {
 };
 
 #define OFFSET(x) offsetof(HapqaExtractContext, x)
+#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_BSF_PARAM)
 static const AVOption options[] = {
-    { "texture", "texture to keep", OFFSET(texture), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, 0, "texture" },
-        { "color", "keep HapQ texture",         0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .unit = "texture" },
-        { "alpha", "keep HapAlphaOnly texture", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .unit = "texture" },
+    { "texture", "texture to keep", OFFSET(texture), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS, "texture" },
+        { "color", "keep HapQ texture",         0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FLAGS, "texture" },
+        { "alpha", "keep HapAlphaOnly texture", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, FLAGS, "texture" },
     { NULL },
 };