sparc32: fix sparse warning in devices.c

Fix following warning:
devices.c:114:13: warning: symbol 'device_scan' was not declared. Should it be static?

Add prototype to asm/setup.h

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 files changed