[PATCH] Char: mxser_new, rework to allow dynamic structs

This patch is preparation for further patches (pci probing) to allow allocated
structures to be private data in pci_dev structure.  Union two different
structures used in the driver (hw_conf and port/board descriptor) to another
2: port and board not to initialize 2 different things and to have ports
contained in board structure.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>