[ARM] cachetype: move definitions to separate header

Rather than pollute asm/cacheflush.h with the cache type definitions,
move them to asm/cachetype.h, and include this new header where
necessary.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index a8ec97b..dbdb7b7 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -18,6 +18,7 @@
 #include <linux/pagemap.h>
 
 #include <asm/cacheflush.h>
+#include <asm/cachetype.h>
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>