arm64: defconfig: Enable RZ_DMAC

Enable DMAC driver support for Renesas RZ/G2L based platforms.
Signed-off-by: NBiju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20210920093605.8906-1-biju.das.jz@bp.renesas.comSigned-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/configs/defconfig

@@ -936,6 +936,7 @@ CONFIG_QCOM_HIDMA_MGMT=y
 CONFIG_QCOM_HIDMA=y
 CONFIG_RCAR_DMAC=y
 CONFIG_RENESAS_USB_DMAC=m
+CONFIG_RZ_DMAC=y
 CONFIG_TI_K3_UDMA=y
 CONFIG_TI_K3_UDMA_GLUE_LAYER=y
 CONFIG_VFIO=y