rockchip: rk3399-gru: Move SPI flash payload offset for bob and kevin

The BootROM on RK3399 only read the first 2 KB of each 4 KB page from
SPI flash. With current FIT payload offset of 0x40000 this limits the
supported TPL+SPL size to only 128 KB.

Change to use 0xE0000 as FIT payload offset, similar to other RK3399
boards, to allow a maximum size for TPL of 192 KB and SPL of 256 KB.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/configs/chromebook_bob_defconfig b/configs/chromebook_bob_defconfig
index decac2e..69a07ef 100644
--- a/configs/chromebook_bob_defconfig
+++ b/configs/chromebook_bob_defconfig
@@ -44,7 +44,7 @@
 # CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
 # CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
 CONFIG_SPL_SPI_LOAD=y
-CONFIG_SYS_SPI_U_BOOT_OFFS=0x40000
+CONFIG_SYS_SPI_U_BOOT_OFFS=0xE0000
 CONFIG_SPL_ATF_NO_PLATFORM_PARAM=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GPIO=y
diff --git a/configs/chromebook_kevin_defconfig b/configs/chromebook_kevin_defconfig
index 5bbea6c..d689eea 100644
--- a/configs/chromebook_kevin_defconfig
+++ b/configs/chromebook_kevin_defconfig
@@ -45,7 +45,7 @@
 # CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
 # CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
 CONFIG_SPL_SPI_LOAD=y
-CONFIG_SYS_SPI_U_BOOT_OFFS=0x40000
+CONFIG_SYS_SPI_U_BOOT_OFFS=0xE0000
 CONFIG_SPL_ATF_NO_PLATFORM_PARAM=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GPIO=y