Correct max number of LDPC segments for T2 processing

Fix error reported by the T2 card when running nr_dlsim with 4 DL layers.
Error can be reproduced by running:
./nr_dlsim -n100 -s30 -e25 -b273 -R273 -x4 -z4 -y4 -P --ldpc_offload.dpdk_dev 41:00.0 -c

So far we set NR_LDPC_MAX_NUM_CB to 72, which is sufficient for max 2 DL layers.
Set max possible number of LDPC segments based on the max number of layers
and max number of DLSCH segments (currently it is 144).

openair1/PHY/CODING/nrLDPC_decoder/nrLDPCdecoder_defs.h

@@ -99,7 +99,8 @@
 /** Maximum number of possible input LLR = NR_LDPC_NCOL_BG1*NR_LDPC_ZMAX */
 #define NR_LDPC_MAX_NUM_LLR 27000
 
-#define NR_LDPC_MAX_NUM_CB 72
+/** Maximum number of segments per TB = MAX_NUM_NR_DLSCH_SEGMENTS_PER_LAYER*NR_MAX_NB_LAYERS */
+#define NR_LDPC_MAX_NUM_CB 144
 
 // ==============================================================================
 // GLOBAL CONSTANT VARIABLES