regmap: split up regmap_config.use_single_rw

Split regmap_config.use_single_rw into use_single_read and
use_single_write. This change enables drivers of devices which only
support bulk operations in one direction to use the regmap_bulk_*()
functions for both directions and have their bulk operation split into
single operations only when necessary.

Update all struct regmap_config instances where use_single_rw==true to
instead set both use_single_read and use_single_write. No attempt was
made to evaluate whether it is possible to set only one of
use_single_read or use_single_write.

Signed-off-by: David Frey <dpfrey@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/cs35l33.c b/sound/soc/codecs/cs35l33.c
index 668cd37..e9b7f72 100644
--- a/sound/soc/codecs/cs35l33.c
+++ b/sound/soc/codecs/cs35l33.c
@@ -857,7 +857,8 @@
 	.readable_reg = cs35l33_readable_register,
 	.writeable_reg = cs35l33_writeable_register,
 	.cache_type = REGCACHE_RBTREE,
-	.use_single_rw = true,
+	.use_single_read = true,
+	.use_single_write = true,
 };
 
 static int __maybe_unused cs35l33_runtime_resume(struct device *dev)