Add Nokia CBUS support

Add Nokia CBUS support

Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>

diff --cc arch/arm/Kconfig
Simple merge

diff --cc drivers/Makefile
Simple merge

diff --cc drivers/cbus/Kconfig
Simple merge

diff --cc drivers/cbus/Makefile
Simple merge

diff --cc drivers/cbus/cbus.c
Simple merge

diff --cc drivers/cbus/cbus.h
Simple merge

diff --cc drivers/cbus/retu-headset.c
Simple merge

diff --cc drivers/cbus/retu-pwrbutton.c
Simple merge

diff --cc drivers/cbus/retu-rtc.c
Simple merge

diff --cc drivers/cbus/retu-user.c
Simple merge

diff --cc drivers/cbus/retu-wdt.c
Simple merge

diff --cc drivers/cbus/retu.c
Simple merge

diff --cc drivers/cbus/retu.h
Simple merge

diff --cc drivers/cbus/tahvo-usb.c
Simple merge

diff --cc drivers/cbus/tahvo-user.c
Simple merge

diff --cc drivers/cbus/tahvo.c
Simple merge

diff --cc drivers/cbus/tahvo.h
Simple merge

diff --cc drivers/cbus/user_retu_tahvo.h
Simple merge