dts: s32g27a: pfe: refactor interface HIF number

commit  6cb1d8f8cc5dbec4be7f4527db2f1bf632768f0e from
https://source.codeaurora.org/external/autobsps32/linux



The ethernet property fsl,pfeng-hif-channel was moved
to the basic include file fsl-s32g274a.dtsi to not
duplicate them in all targets

Issue: ALB-6478
Signed-off-by: Jan Petrous <jan.petrous@nxp.com>
Signed-off-by: Meng Li <Meng.Li@windriver.com>