powerpc: io.h: Add defines for __raw_{read, write} functions

Add defines for __raw_{read,write}{b,w,l}() functions to make
make asm-generic/io.h aware of them.

Signed-off-by: Igor Prusov <ivprusov@salutedevices.com>
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index f63cae0..2412bb9 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -138,26 +138,37 @@
 {
 	return *(volatile unsigned char *)PCI_FIX_ADDR(addr);
 }
+#define __raw_readb __raw_readb
+
 static inline unsigned short __raw_readw(const volatile void __iomem *addr)
 {
 	return *(volatile unsigned short *)PCI_FIX_ADDR(addr);
 }
+#define __raw_readw __raw_readw
+
 static inline unsigned int __raw_readl(const volatile void __iomem *addr)
 {
 	return *(volatile unsigned int *)PCI_FIX_ADDR(addr);
 }
+#define __raw_readl __raw_readl
+
 static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr)
 {
 	*(volatile unsigned char *)PCI_FIX_ADDR(addr) = v;
 }
+#define __raw_writeb __raw_writeb
+
 static inline void __raw_writew(unsigned short v, volatile void __iomem *addr)
 {
 	*(volatile unsigned short *)PCI_FIX_ADDR(addr) = v;
 }
+#define __raw_writew __raw_writew
+
 static inline void __raw_writel(unsigned int v, volatile void __iomem *addr)
 {
 	*(volatile unsigned int *)PCI_FIX_ADDR(addr) = v;
 }
+#define __raw_writel __raw_writel
 
 /*
  * 8, 16 and 32 bit, big and little endian I/O operations, with barrier.