ppc64: use "ASM_CONST()" to give proper C type to constants

that can also be used in assembly language context.

This one fixes the common CPU_FTR_COHERENT_ICACHE warning in
asm/cacheflush.h.

include/asm-ppc64/cacheflush.h

@@ -40,7 +40,7 @@ extern void __flush_dcache_icache(void *page_va);
 
 static inline void flush_icache_range(unsigned long start, unsigned long stop)
 {
-	if (!(cur_cpu_spec->cpu_features & CPU_FTR_COHERENT_ICACHE))
+	if (!(cur_cpu_spec->cpu_features & ASM_CONST(CPU_FTR_COHERENT_ICACHE)))
 		__flush_icache_range(start, stop);
 }
 

include/asm-ppc64/page.h

@@ -15,7 +15,8 @@
 #ifdef __ASSEMBLY__
   #define ASM_CONST(x) x
 #else
-  #define ASM_CONST(x) x##UL
+  #define __ASM_CONST(x) x##UL
+  #define ASM_CONST(x) __ASM_CONST(x)
 #endif
 
 /* PAGE_SHIFT determines the page size */