fix fuzzer32 litCSize limit condition

lib/zstd_internal.h

@@ -214,6 +214,10 @@ void ZSTD_resetSeqStore(seqStore_t* ssPtr);
 #define MaxLL  ((1<<LLbits) - 1)
 #define MaxOff   31
 
+#define MIN_SEQUENCES_SIZE (2 /*seqNb*/ + 2 /*dumps*/ + 3 /*seqTables*/ + 1 /*bitStream*/)
+#define MIN_CBLOCK_SIZE (3 /*litCSize*/ + MIN_SEQUENCES_SIZE)
+
+
 /** ZSTD_storeSeq
     Store a sequence (literal length, literals, offset code and match length) into seqStore_t
     @offsetCode : distance to match, or 0 == repCode