redhat/configs: Make CONFIG_RTC_DRV_TEGRA=m

JIRA: https://issues.redhat.com/browse/RHEL-49511
Upstream Status: RHEL-only

We originally enabled CONFIG_RTC_DRV_TEGRA as a built-in, but apparently
there's no reason for that. Make it a module instead to be consistent
with kernel-ark.

Signed-off-by: Luiz Capitulino luizcap@redhat.com

redhat/configs/common/generic/arm/aarch64/CONFIG_RTC_DRV_TEGRA

+CONFIG_RTC_DRV_TEGRA=m