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/video/rockchip/rk_vop.c b/drivers/video/rockchip/rk_vop.c
index aa6ca8c..48bfcd4 100644
--- a/drivers/video/rockchip/rk_vop.c
+++ b/drivers/video/rockchip/rk_vop.c
@@ -294,7 +294,7 @@
 		return 0;
 
 	priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
-	priv->regs = (struct rk3288_vop *)dev_get_addr(dev);
+	priv->regs = (struct rk3288_vop *)devfdt_get_addr(dev);
 
 	/* lcdc(vop) iodomain select 1.8V */
 	rk_setreg(&priv->grf->io_vsel, 1 << 0);