message: improve hwcf format description
diff: @@ -42,7 +42,7 @@ class TArrayC;
  * word 0: header (big endian 32bit unsigned)
  * bit 31-30: 0x11 indicates cluster
  * bit 29-24: row number in partition
  - * bit 23: is set when the cluster is an edge cluster
  + * bit 23: is set when the cluster is a border (edge cluster or at branch borders or interleaved row) cluster
  * bit 22-0: Qmax, fixed point number with 6 bits after the point
  * word 1: bit 31: is set when cluster is deconvoluted in pad direction
  * bit 30: is set when cluster is deconvoluted in time direction
  