dts: Aptiv-FL: add correct pinctrls for pfe interfaces for Aptiv-FL board

Add pinctrls for pfe0/1/2 interfaces for Aptiv-FL board. Note that
RTL9010 phys need to be configured at u-boot.

This patch comes from:
meta-cvc-fl/recipes-kernel/linux/linux-s32/0001-ESL-427-Linux-S32-cvc-support+cleanup.patch

Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>