conf/machine/*.conf: Rework information header

conf/machine/*.conf: Rework information header

  *Rework the information header to include a proper name, SoC and
   maintainer fields.

   This change has been done for follow boards:
       - b4420qds-64b
       - b4420qds
       - b4860qds-64b
       - b4860qds
       - bsc9131rdb
       - bsc9132qds
       - c293pcie
       - p1010rdb
       - p1020rdb
       - p1021rdb
       - p1022ds
       - p1023rdb
       - p1025twr
       - p2020ds
       - p2020rdb
       - p2041rdb
       - p3041ds
       - p4080ds
       - p5020ds-64b
       - p5020ds
       - p5040ds-64b
       - p5040ds
       - t2080qds-64b
       - t2080qds
       - t4160qds-64b
       - t4160qds
       - t4240qds-64b
       - t4240qds

Signed-off-by: Chunrong Guo <B40290@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>