n800-bt: include board-nokia.h

n800-bt: include board-nokia.h

Fixes compilation error:

arch/arm/mach-omap2/board-n800-bt.c: In function 'n800_bt_init':
arch/arm/mach-omap2/board-n800-bt.c:36: error: 'OMAP_TAG_NOKIA_BT' undeclared (first use in this function)
arch/arm/mach-omap2/board-n800-bt.c:36: error: (Each undeclared identifier is reported only once
arch/arm/mach-omap2/board-n800-bt.c:36: error: for each function it appears in.)
arch/arm/mach-omap2/board-n800-bt.c:36: error: invalid application of 'sizeof' to incomplete type 'struct omap_bluetooth_config'

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>