net/fman: update 10GEC to fit new SoC

fm_standard_init() initializes each 10G port by FM_TGEC_INFO_INITIALIZER.
but it needs different implementation of FM_TGEC_INFO_INITIALIZER on different SoCs.
on SoCs earlier(e.g. T4240, T2080), the notation between 10GEC and MAC as below:
	10GEC1->MAC9, 10GEC2->MAC10, 10GEC3->MAC1, 10GEC4->MAC2
on SoCs later(e.g. T1024, etc), the notation between 10GEC and MAC as below:
	10GEC1->MAC1, 10GEC2->MAC2

so we introduce CONFIG_FSL_FM_10GEC_REGULAR_NOTATION to fit the new SoCs on
which 10GEC enumeration is consistent with MAC enumeration.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/drivers/net/fm/eth.c b/drivers/net/fm/eth.c
index 137886c..f1e39b9 100644
--- a/drivers/net/fm/eth.c
+++ b/drivers/net/fm/eth.c
@@ -565,9 +565,11 @@
 	num = fm_eth->num;
 
 #ifdef CONFIG_SYS_FMAN_V3
+#ifndef CONFIG_FSL_FM_10GEC_REGULAR_NOTATION
 	if (fm_eth->type == FM_ETH_10G_E) {
-		/* 10GEC1/10GEC2 use mEMAC9/mEMAC10
-		 * 10GEC3/10GEC4 use mEMAC1/mEMAC2
+		/* 10GEC1/10GEC2 use mEMAC9/mEMAC10 on T2080/T4240.
+		 * 10GEC3/10GEC4 use mEMAC1/mEMAC2 on T2080.
+		 * 10GEC1 uses mEMAC1 on T1024.
 		 * so it needs to change the num.
 		 */
 		if (fm_eth->num >= 2)
@@ -575,6 +577,7 @@
 		else
 			num += 8;
 	}
+#endif
 	base = &reg->memac[num].fm_memac;
 	phyregs = &reg->memac[num].fm_memac_mdio;
 #else