ARM: rmobile: Adjust text base on V3M Eagle

The latest ATF puts the U-Boot at 0x50000000, just like on all the other
boards. Adjust the text base to reflect that change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

configs/r8a77970_eagle_defconfig

@@ -1,6 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARCH_RMOBILE=y
-CONFIG_SYS_TEXT_BASE=0x58280000
+CONFIG_SYS_TEXT_BASE=0x50000000
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_RCAR_GEN3=y
 CONFIG_R8A77970=y