redhat/configs: enable Micrel PHY for NXP Automotive SoCs S32G2xx/S32G3xx/S32R45

JIRA: https://issues.redhat.com/browse/RHEL-116889

Upstream Status: RHEL only

Signed-off-by: Alessandro Carminati <acarmina@redhat.com>

Author: alessandrocarminati

redhat/configs/rhel/automotive/generic/CONFIG_MICREL_PHY

@@ -1 +1 @@
-# CONFIG_MICREL_PHY is not set
+CONFIG_MICREL_PHY=m