alpha: Kconfig: pedantic formatting

Formatting of Kconfig files doesn't look so pretty, so let the
Great White Handkerchief come around and clean it up.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Matt Turner <mattst88@gmail.com>

arch/alpha/Kconfig

@@ -545,7 +545,7 @@ config NR_CPUS
 	default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
 	help
 	  MARVEL support can handle a maximum of 32 CPUs, all the others
-          with working support have a maximum of 4 CPUs.
+	  with working support have a maximum of 4 CPUs.
 
 config ARCH_DISCONTIGMEM_ENABLE
 	bool "Discontiguous Memory Support"