spi: rpc-if: Add resume support for RZ/G3E

JIRA: https://issues.redhat.com/browse/RHEL-104570

commit ad47287
Author: Biju Das <biju.das.jz@bp.renesas.com>
Date:   Sun Sep 21 12:26:46 2025 +0100

    spi: rpc-if: Add resume support for RZ/G3E

    On RZ/G3E using PSCI, s2ram powers down the SoC. After resume,
    reinitialize the hardware for SPI operations.

    Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
    Link: https://patch.msgid.link/20250921112649.104516-3-biju.das.jz@bp.renesas.com
    Signed-off-by: Mark Brown <broonie@kernel.org>

Signed-off-by: Mattijs Korpershoek <mkorpershoek@redhat.com>

Author: makohoek

drivers/spi/spi-rpc-if.c

@@ -207,6 +207,8 @@ static int rpcif_spi_resume(struct device *dev)
 {
 	struct spi_controller *ctlr = dev_get_drvdata(dev);
 
+	rpcif_hw_init(dev, false);
+
 	return spi_controller_resume(ctlr);
 }