regmap: Rename LZO cache type to compressed

Users probably don't care about the specific compression algorithm and
we might want to use a different algorithm (snappy being the one I'm
thinking of right now) so update the public interface to have a more
generic name.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 32043a9..bebda14 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -25,7 +25,7 @@
 	REGCACHE_NONE,
 	REGCACHE_INDEXED,
 	REGCACHE_RBTREE,
-	REGCACHE_LZO
+	REGCACHE_COMPRESSED
 };
 
 /**