kernel/range: Const-ify range_contains parameters

range_contains() does not modify the range values.  David suggested it
is safer to keep those parameters as const.[1]

Make range parameters const

Link: https://lore.kernel.org/all/[email protected]/ [1]
Reviewed-by: Dan Williams <[email protected]>
Reviewed-by: David Sterba <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Ira Weiny <[email protected]>
Signed-off-by: Dave Jiang <[email protected]>

Author: weiny2

include/linux/range.h

@@ -13,7 +13,8 @@ static inline u64 range_len(const struct range *range)
 	return range->end - range->start + 1;
 }
 
-static inline bool range_contains(struct range *r1, struct range *r2)
+static inline bool range_contains(const struct range *r1,
+				  const struct range *r2)
 {
 	return r1->start <= r2->start && r1->end >= r2->end;
 }