[PARISC] Remove __read_mostly annotation from command_line

Who cares if it's in the read mostly section when it's
going to be discarded anyway?

Signed-off-by: Kyle McMartin <[e-mail]>

arch/parisc/kernel/setup.c

···
 #include <asm/io.h>
 #include <asm/setup.h>
 
-char	__initdata command_line[COMMAND_LINE_SIZE] __read_mostly;
+char	__initdata command_line[COMMAND_LINE_SIZE];
 
 /* Intended for ccio/sba/cpu statistics under /proc/bus/{runway|gsc} */
 struct proc_dir_entry * proc_runway_root __read_mostly = NULL;