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>