rockchip: rk3588: Migrate to OF_UPSTREAM

Migrate RK3588 boards that exists in Linux v6.8 to use OF_UPSTREAM.

Following targets is not migrated to use OF_UPSTREAM:
- generic-rk3588: Generic target only meant for U-Boot use
- toybrick-rk3588: Merged in v6.9-rc1

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/configs/generic-rk3588_defconfig b/configs/generic-rk3588_defconfig
index 87a1717..42bc2c9 100644
--- a/configs/generic-rk3588_defconfig
+++ b/configs/generic-rk3588_defconfig
@@ -32,6 +32,7 @@
 # CONFIG_SPL_DOS_PARTITION is not set
 CONFIG_SPL_OF_CONTROL=y
 CONFIG_OF_LIVE=y
+# CONFIG_OF_UPSTREAM is not set
 CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 # CONFIG_NET is not set