fdt: rework fdt_fixup_ethernet() to use env instead of bd_t

Move to using the environment variables 'ethaddr', 'eth1addr', etc..
instead of bd->bi_enetaddr, bi_enet1addr, etc.

This makes the code a bit more flexible to the number of ethernet
interfaces.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/cpu/74xx_7xx/cpu.c b/cpu/74xx_7xx/cpu.c
index ea43c9a..c007abc 100644
--- a/cpu/74xx_7xx/cpu.c
+++ b/cpu/74xx_7xx/cpu.c
@@ -314,7 +314,7 @@
 
 	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
 
-	fdt_fixup_ethernet(blob, bd);
+	fdt_fixup_ethernet(blob);
 }
 #endif
 /* ------------------------------------------------------------------------- */
diff --git a/cpu/mpc512x/cpu.c b/cpu/mpc512x/cpu.c
index 703e188..1f39ac4 100644
--- a/cpu/mpc512x/cpu.c
+++ b/cpu/mpc512x/cpu.c
@@ -191,7 +191,7 @@
 #endif
 	ft_clock_setup(blob, bd);
 #ifdef CONFIG_HAS_ETH0
-	fdt_fixup_ethernet(blob, bd);
+	fdt_fixup_ethernet(blob);
 #endif
 }
 #endif
diff --git a/cpu/mpc8260/cpu.c b/cpu/mpc8260/cpu.c
index 4d5d141..efb8ed6 100644
--- a/cpu/mpc8260/cpu.c
+++ b/cpu/mpc8260/cpu.c
@@ -307,7 +307,7 @@
 
 #if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
     defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
-	fdt_fixup_ethernet(blob, bd);
+	fdt_fixup_ethernet(blob);
 #endif
 
 	do_fixup_by_path_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1);
diff --git a/cpu/mpc83xx/fdt.c b/cpu/mpc83xx/fdt.c
index fda85c1..39bd9dc 100644
--- a/cpu/mpc83xx/fdt.c
+++ b/cpu/mpc83xx/fdt.c
@@ -53,7 +53,7 @@
 
 #if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
     defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
-	fdt_fixup_ethernet(blob, bd);
+	fdt_fixup_ethernet(blob);
 #endif
 
 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
diff --git a/cpu/mpc85xx/fdt.c b/cpu/mpc85xx/fdt.c
index c159934..bc1550d 100644
--- a/cpu/mpc85xx/fdt.c
+++ b/cpu/mpc85xx/fdt.c
@@ -212,7 +212,7 @@
 
 #if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) ||\
     defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
-	fdt_fixup_ethernet(blob, bd);
+	fdt_fixup_ethernet(blob);
 #endif
 
 	do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
diff --git a/cpu/mpc86xx/fdt.c b/cpu/mpc86xx/fdt.c
index 80a5c78..12d9052 100644
--- a/cpu/mpc86xx/fdt.c
+++ b/cpu/mpc86xx/fdt.c
@@ -25,7 +25,7 @@
 
 #if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) \
     || defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
-	fdt_fixup_ethernet(blob, bd);
+	fdt_fixup_ethernet(blob);
 #endif
 
 #ifdef CFG_NS16550
diff --git a/cpu/mpc8xx/fdt.c b/cpu/mpc8xx/fdt.c
index 567094a..7130983 100644
--- a/cpu/mpc8xx/fdt.c
+++ b/cpu/mpc8xx/fdt.c
@@ -40,7 +40,7 @@
 		gd->brg_clk, 1);
 
 	/* Fixup ethernet MAC addresses */
-	fdt_fixup_ethernet(blob, bd);
+	fdt_fixup_ethernet(blob);
 
 	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
 }
diff --git a/cpu/ppc4xx/fdt.c b/cpu/ppc4xx/fdt.c
index 0323dc5..a97484f 100644
--- a/cpu/ppc4xx/fdt.c
+++ b/cpu/ppc4xx/fdt.c
@@ -130,7 +130,7 @@
 	 * Fixup all ethernet nodes
 	 * Note: aliases in the dts are required for this
 	 */
-	fdt_fixup_ethernet(blob, bd);
+	fdt_fixup_ethernet(blob);
 
 	/*
 	 * Fixup all available PCIe nodes by setting the device_type property