ARM: rmobile: Enable RPC QSPI on R8A77970 V3M Eagle

Enable the RPC QSPI driver on R8A77970 V3M Eagle and configure
the environment layout to match that used by old U-Boot.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/include/configs/eagle.h b/include/configs/eagle.h
index 2ef0c7a..d2edd56 100644
--- a/include/configs/eagle.h
+++ b/include/configs/eagle.h
@@ -19,6 +19,12 @@
 #define CONFIG_BITBANGMII
 #define CONFIG_BITBANGMII_MULTI
 
+/* Environment compatibility */
+#undef CONFIG_ENV_SIZE_REDUND
+#undef CONFIG_ENV_SECT_SIZE
+#define CONFIG_ENV_SECT_SIZE	(256 * 1024)
+#define CONFIG_ENV_OFFSET	0x700000
+
 /* Board Clock */
 /* XTAL_CLK : 33.33MHz */
 #define CONFIG_SYS_CLK_FREQ	33333333u