ARM: add size argument to __cpuc_flush_dcache_page

... and rename the function since it no longer operates on just
pages.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/proc-syms.c b/arch/arm/mm/proc-syms.c
index f604aa8..3e6210b 100644
--- a/arch/arm/mm/proc-syms.c
+++ b/arch/arm/mm/proc-syms.c
@@ -27,7 +27,7 @@
 EXPORT_SYMBOL(__cpuc_flush_user_all);
 EXPORT_SYMBOL(__cpuc_flush_user_range);
 EXPORT_SYMBOL(__cpuc_coherent_kern_range);
-EXPORT_SYMBOL(__cpuc_flush_dcache_page);
+EXPORT_SYMBOL(__cpuc_flush_dcache_area);
 #else
 EXPORT_SYMBOL(cpu_cache);
 #endif