bytedance: g220a: Use u-boot-aspeed-sdk

Use the new u-boot-aspeed-sdk as the uboot.

Tested: Verify the image boots u-boot in g220a QEMU, and boots the
        OpenBMC if bootcmd is modified to fit the image.

Signed-off-by: Lei YU <yulei.sh@bytedance.com>
Change-Id: I93c3a083a81f09d37627749c8d0692ae9a75466a
diff --git a/meta-bytedance/meta-g220a/conf/machine/g220a.conf b/meta-bytedance/meta-g220a/conf/machine/g220a.conf
index 692c9f6..972862a 100644
--- a/meta-bytedance/meta-g220a/conf/machine/g220a.conf
+++ b/meta-bytedance/meta-g220a/conf/machine/g220a.conf
@@ -1,7 +1,8 @@
 KMACHINE = "aspeed"
 KERNEL_DEVICETREE = "${KMACHINE}-bmc-bytedance-${MACHINE}.dtb"
 
-UBOOT_MACHINE = "ast_g5_ncsi_config"
+UBOOT_MACHINE = "evb-ast2500_defconfig"
+UBOOT_DEVICETREE = "ast2500-evb"
 
 FLASH_SIZE = "65536"
 FLASH_UBOOT_OFFSET = "0"
@@ -33,3 +34,7 @@
 PREFERRED_PROVIDER_virtual/obmc-flash-mgmt = "packagegroup-bytedance-apps"
 PREFERRED_PROVIDER_virtual/obmc-host-ipmi-hw ?= "phosphor-ipmi-kcs"
 PREFERRED_PROVIDER_virtual/obmc-system-mgmt = "packagegroup-bytedance-apps"
+
+PREFERRED_PROVIDER_virtual/bootloader = "u-boot-aspeed-sdk"
+PREFERRED_PROVIDER_u-boot = "u-boot-aspeed-sdk"
+PREFERRED_PROVIDER_u-boot-fw-utils = "u-boot-fw-utils-aspeed-sdk"