avcodec/hevc: fix duplicate/wrong nal unit check and difference to openhevc_upstream

NAL_BLA_W_RADL instead of NAL_BLA_N_LP
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/hevc.c

@@ -1932,7 +1932,7 @@ static int decode_nal_unit(HEVCContext *s, const uint8_t *nal, int length)
             if (s->nal_unit_type == NAL_CRA_NUT  ||
                 s->nal_unit_type == NAL_BLA_W_LP ||
                 s->nal_unit_type == NAL_BLA_N_LP ||
-                s->nal_unit_type == NAL_BLA_N_LP) {
+                s->nal_unit_type == NAL_BLA_W_RADL) {
                 s->max_ra = s->poc;
             } else {
                 if (IS_IDR(s))