[PARISC] Add __iomem to __raw_check_addr()

Add __iomem to __raw_check_addr(), which nukes ~13809 sparse
warnings on allmodconfig.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

include/asm-parisc/io.h

@@ -41,7 +41,7 @@ extern void __raw_bad_addr(const volatile void __iomem *addr);
 #define __raw_check_addr(addr)					\
 	if (((unsigned long)addr >> NYBBLE_SHIFT) != 0xe)	\
 		__raw_bad_addr(addr);			\
-	addr = (void *)((unsigned long)addr | (0xfUL << NYBBLE_SHIFT));
+	addr = (void __iomem *)((unsigned long)addr | (0xfUL << NYBBLE_SHIFT));
 #else
 #define gsc_check_addr(addr)
 #define __raw_check_addr(addr)