configs: qemu-riscvXX_spl_defconfig enable CMD_SBI

Both for 64bit and 32bit at least on one board we should compile the sbi
command. Enabling it on QEMU will allow to write a test for it.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/configs/qemu-riscv32_spl_defconfig b/configs/qemu-riscv32_spl_defconfig
index 28ac2b3..ee81e55 100644
--- a/configs/qemu-riscv32_spl_defconfig
+++ b/configs/qemu-riscv32_spl_defconfig
@@ -10,6 +10,7 @@
 CONFIG_SPL_LOAD_FIT_ADDRESS=0x80200000
 CONFIG_DISPLAY_CPUINFO=y
 CONFIG_DISPLAY_BOARDINFO=y
+CONFIG_CMD_SBI=y
 # CONFIG_CMD_MII is not set
 CONFIG_OF_PRIOR_STAGE=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y