85xx/86xx: Rename ext_refrec to timing_cfg_3 to match docs

All the 85xx and 86xx UM describe the register as timing_cfg_3
not as ext_refrec.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd.c b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
index d9a740e..3a855b5 100644
--- a/board/freescale/mpc8610hpcd/mpc8610hpcd.c
+++ b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
@@ -192,7 +192,7 @@
 	ddr->cs0_bnds = 0x0000001f;
 	ddr->cs0_config = 0x80010202;
 
-	ddr->ext_refrec = 0x00000000;
+	ddr->timing_cfg_3 = 0x00000000;
 	ddr->timing_cfg_0 = 0x00260802;
 	ddr->timing_cfg_1 = 0x3935d322;
 	ddr->timing_cfg_2 = 0x14904cc8;
diff --git a/board/freescale/mpc8641hpcn/mpc8641hpcn.c b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
index 31e7d67..bb1f927 100644
--- a/board/freescale/mpc8641hpcn/mpc8641hpcn.c
+++ b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
@@ -130,7 +130,7 @@
 
 	ddr->cs0_bnds = CFG_DDR_CS0_BNDS;
 	ddr->cs0_config = CFG_DDR_CS0_CONFIG;
-	ddr->ext_refrec = CFG_DDR_EXT_REFRESH;
+	ddr->timing_cfg_3 = CFG_DDR_TIMING_3;
 	ddr->timing_cfg_0 = CFG_DDR_TIMING_0;
 	ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
 	ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
diff --git a/board/sbc8548/sbc8548.c b/board/sbc8548/sbc8548.c
index 8a6ced3..46496da 100644
--- a/board/sbc8548/sbc8548.c
+++ b/board/sbc8548/sbc8548.c
@@ -299,7 +299,7 @@
 	ddr->cs1_config		= 0x80010101;
 	ddr->cs2_config		= 0x00000000;
 	ddr->cs3_config		= 0x00000000;
-	ddr->ext_refrec		= 0x00000000;
+	ddr->timing_cfg_3		= 0x00000000;
 	ddr->timing_cfg_0	= 0x00220802;
 	ddr->timing_cfg_1	= 0x38377322;
 	ddr->timing_cfg_2	= 0x0fa044C7;
diff --git a/board/sbc8641d/sbc8641d.c b/board/sbc8641d/sbc8641d.c
index b3dd9c8..519f332 100644
--- a/board/sbc8641d/sbc8641d.c
+++ b/board/sbc8641d/sbc8641d.c
@@ -135,7 +135,7 @@
 	ddr->cs1_config = CFG_DDR_CS1_CONFIG;
 	ddr->cs2_config = CFG_DDR_CS2_CONFIG;
 	ddr->cs3_config = CFG_DDR_CS3_CONFIG;
-	ddr->ext_refrec = CFG_DDR_EXT_REFRESH;
+	ddr->timing_cfg_3 = CFG_DDR_TIMING_3;
 	ddr->timing_cfg_0 = CFG_DDR_TIMING_0;
 	ddr->timing_cfg_1 = CFG_DDR_TIMING_1;
 	ddr->timing_cfg_2 = CFG_DDR_TIMING_2;
@@ -166,7 +166,7 @@
 	ddr->cs1_config = CFG_DDR2_CS1_CONFIG;
 	ddr->cs2_config = CFG_DDR2_CS2_CONFIG;
 	ddr->cs3_config = CFG_DDR2_CS3_CONFIG;
-	ddr->ext_refrec = CFG_DDR2_EXT_REFRESH;
+	ddr->timing_cfg_3 = CFG_DDR2_EXT_REFRESH;
 	ddr->timing_cfg_0 = CFG_DDR2_TIMING_0;
 	ddr->timing_cfg_1 = CFG_DDR2_TIMING_1;
 	ddr->timing_cfg_2 = CFG_DDR2_TIMING_2;