include/asm-x86/dwarf2_64.h: checkpatch cleanups - formatting only

Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

include/asm-x86/dwarf2_64.h

 #ifndef _DWARF2_H
 #define _DWARF2_H 1
 
-
 #ifndef __ASSEMBLY__
 #warning "asm/dwarf2.h should be only included in pure assembly files"
 #endif