With multiboard support the compiletime generated BOARDINFO string
gets more and more meaningless. This removes it from Kconfig and
replaces it with a variable that can be set at boardlevel.

Also many boards have a standard setting for the hostname in the
environment. This patch also moves the standard to C code by calling
barebox_set_hostname().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

tested with qemu only

qemu-system-arm -M versatilepb -monitor null -kernel barebox -net nic -net user -tftp "<uImage-path>/" -serial stdio

add -nographic if you do not want the lcd via sdl

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>

update:
 - use default env
 - move arm_timer.h as in the kernel
 - add nor flash support
 - udpate defconfig
 - fix copyright copy from linux
 - fix ARCH_TEXT_BASE

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>