ARM: Add kmap_atomic type debugging

Seemingly this support was missed when highmem was added, so
DEBUG_HIGHMEM wouldn't have checked the kmap_atomic type.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mm/highmem.c

@@ -46,6 +46,8 @@ void *kmap_atomic(struct page *page, enum km_type type)
 	if (!PageHighMem(page))
 		return page_address(page);
 
+	debug_kmap_atomic(type);
+
 	kmap = kmap_high_get(page);
 	if (kmap)
 		return kmap;