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/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 0b21ec6..bb10caa 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -808,7 +808,8 @@
 	int node = dev_of_offset(dev);
 	int val;
 
-	plat->base_addr = map_physmem(dev_get_addr(dev), sizeof(struct hsmmc *),
+	plat->base_addr = map_physmem(devfdt_get_addr(dev),
+				      sizeof(struct hsmmc *),
 				      MAP_NOCACHE) + data->reg_offset;
 
 	cfg->host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS;