h5400 patch - merge h5400_bt.c back to h5400.c

Hello all!
After some work and testing I propose a patch bringing back the
bluetooth support back to main file of h5400.

I have tested this on h5455 device (not h55xx series), but I think it
was so trivial that it shouldn't brake on other devices.

Known issues :
*bluetooth shows up on /dev/ttyS1:
 so blueproble has to be modified (I will porpose a patch on angstrom
bugzilla for that)
 a sample command to get the bluetooth working is '/sbin/hciattach
/dev/ttyS1 any 921600'
 I am not sure if blueprobe works ok, even after patches... - it would
be nice if somebody could have a look on that.
*hci_uart module needs to be loaded - otherwise BT won't work
 it would be nice to make it automatic (I don't know how to do it )
*blue led flashes continuously - it doesn't blink (it worked the same
before the merge)
 I would ask for some help here too...
*I am not sure if we really need the include/asm-arm/arch-pxa/h5400.h file...
 there is hardly anything there....

Otherwise it works ok - even after suspend....

If there is someone lazy who would like to verify my work and does not
like playing with patching kernel and building images he is a link
that a test console image is available:
http://delta-9-thc.czuby.net/~yans/hh/h5000/

My next steps:
Once patch gets accepted, I will submit patches to OE (angstrom),
propose patch marking H5400_BT as obsolete (or maybe it is better to
remove that? ) and continue with rest (harder part) of the stuff -
LCD, BL and maybe wifi ....

I would be grateful for comments, testing and some help with issues I
marked.....

Cheers
Michal Panczyk