arc: Remove duplicate newlines

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h
index c818b8b..39f3612 100644
--- a/arch/arc/include/asm/io.h
+++ b/arch/arc/include/asm/io.h
@@ -77,7 +77,6 @@
 #define __arch_putl(v, a)	({ __comp_b(); *(volatile u32 *)(a) = (v); __comp_b(); })
 #define __arch_putq(v, a)	({ __comp_b(); *(volatile u64 *)(a) = (v); __comp_b(); })
 
-
 /*
  * We add memory barriers for __raw_readX / __raw_writeX accessors same way as
  * it is done for readX and writeX accessors as lots of U-Boot driver uses
@@ -93,7 +92,6 @@
 #define __raw_readl(c)		({ u32 __v = __arch_getl(c); __iormb(); __v; })
 #define __raw_readq(c)		({ u64 __v = __arch_getq(c); __iormb(); __v; })
 
-
 static inline void __raw_writesb(unsigned long addr, const void *data,
 				 int bytelen)
 {