Move CONFIG_ENV_OVERWRITE=y into commont renesas_rcar.config to make sure
this configuration option is consistently enabled on all of Renesas R-Car
Gen2, Gen3, Gen4. Currently this option is not enabled on Gen4, this fix
corrects that omission.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Deduplicate common Renesas defconfig by factoring out the common
parts into generic renesas_rcar_defconfig and including those using
the #include <configs/...> preprocessor macro in the current set of
board specific defconfigs. The preprocessor macro is applicable
to defconfigs as well.
This introduces no functional change, the resulting .config are
identical for all Renesas systems.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>