media: vicodec: bugfix - replace '=' with '|='

In the fwht_encode_frame, 'encoding = encode_plane'
should be replaced with 'encoding |= encode_plane'
so existing flags won't be overwrriten.
Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/vicodec/codec-fwht.c

@@ -787,10 +787,10 @@ u32 fwht_encode_frame(struct fwht_raw_frame *frm,
 
 	if (frm->components_num == 4) {
 		rlco_max = rlco + size / 2 - 256;
-		encoding = encode_plane(frm->alpha, ref_frm->alpha, &rlco,
-					rlco_max, cf, frm->height, frm->width,
-					frm->luma_alpha_step,
-					is_intra, next_is_intra);
+		encoding |= encode_plane(frm->alpha, ref_frm->alpha, &rlco,
+					 rlco_max, cf, frm->height, frm->width,
+					 frm->luma_alpha_step,
+					 is_intra, next_is_intra);
 		if (encoding & FWHT_FRAME_UNENCODED)
 			encoding |= FWHT_ALPHA_UNENCODED;
 		encoding &= ~FWHT_FRAME_UNENCODED;