Fixes compilation warning "discards qualifiers from pointer target
type" in io_32.h

Signed-off-by: Rune V. Sjøen <rvsjoen@gmail.com>
---

--- a/include/asm-x86/io_32.h
+++ b/include/asm-x86/io_32.h
@@ -152,7 +152,7 @@ memcpy_fromio(void *dst, const void __iomem *src, int count)
 }

 static inline void
-memcpy_toio(volatile void __iomem *dst, const void *src, int count)
+memcpy_toio(void __iomem *dst, const void *src, int count)
 {
        __memcpy((void __force *)dst, src, count);
 }

-- 
Rune V. Sjøen
You always pass failure on the way to success