dm: Rename dev_addr..() functions

These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/spmi/spmi-msm.c b/drivers/spmi/spmi-msm.c
index 605683f..ca27ee5 100644
--- a/drivers/spmi/spmi-msm.c
+++ b/drivers/spmi/spmi-msm.c
@@ -150,7 +150,7 @@
 	int node = dev_of_offset(dev);
 	int i;
 
-	priv->arb_chnl = dev_get_addr(dev);
+	priv->arb_chnl = devfdt_get_addr(dev);
 	priv->spmi_core = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
 			dev_of_offset(parent), node, "reg", 1, NULL, false);
 	priv->spmi_obs = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,