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/timer/ae3xx_timer.c b/drivers/timer/ae3xx_timer.c
index 7ccb3eb..bcc07a0 100644
--- a/drivers/timer/ae3xx_timer.c
+++ b/drivers/timer/ae3xx_timer.c
@@ -92,7 +92,7 @@
 static int atctme_timer_ofdata_to_platdata(struct udevice *dev)
 {
 	struct atftmr_timer_platdata *plat = dev_get_platdata(dev);
-	plat->regs = map_physmem(dev_get_addr(dev) , 0x100 , MAP_NOCACHE);
+	plat->regs = map_physmem(devfdt_get_addr(dev) , 0x100 , MAP_NOCACHE);
 	return 0;
 }