cli: move memory dump printing into a separate module

Make a generic memory printing function available across CLI.

BUG=none
TEST=verify that memory dump commands still work:

  storm: md 40000000 10
  40000000: edfad6d1 f7bdfeff fa9bdfdb d9fffb77    ............w...
  40000010: fecdbeef febe76eb 668db7fe fb7fbfff    .....v.....f....
  40000020: ffbcfb2f f7fcfffb ffffffff fbffd6fa    /...............
  40000030: befcfefa fef3ffbf fffbff3b f8e7bbbd    ........;.......
  storm: md.b 40000000 10
  40000000: d1 d6 fa ed ff fe bd f7 db df 9b fa 77 fb ff d9    ............w...
  storm:

Change-Id: I511e819b98a2e6900269d899b4b1f8e704241c67
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/202936
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
4 files changed