fate/opus: add silk LBRR test (refs #9890)

This adds a fate test for a sample with LBRR packets.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

tests/fate/opus.mak

@@ -4,7 +4,7 @@
 
 OPUS_CELT_SAMPLES   = $(addprefix testvector, 01 11) tron.6ch.tinypkts
 OPUS_HYBRID_SAMPLES = $(addprefix testvector, 05 06)
-OPUS_SILK_SAMPLES   = $(addprefix testvector, 02 03 04)
+OPUS_SILK_SAMPLES   = $(addprefix testvector, 02 03 04) silk-lbrr
 OPUS_OTHER_SAMPLES  = $(addprefix testvector, 07 08 09 10 12)
 
 define FATE_OPUS_TEST
@@ -33,6 +33,7 @@ fate-opus-testvector09:      CMP_TARGET = 0
 fate-opus-testvector10:      CMP_TARGET = 38
 fate-opus-testvector11:      CMP_TARGET = 0
 fate-opus-testvector12:      CMP_TARGET = 160
+fate-opus-silk-lbrr:         CMP_TARGET = 0
 fate-opus-tron.6ch.tinypkts: CMP_SHIFT = 1440
 fate-opus-tron.6ch.tinypkts: CMP_TARGET = 0