sandbox: Enable SCSI for all builds

This will be needed to run unit tests, once the SCSI code is used for USB
as well. Enable it for all sandbox builds.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig
index 11b9aa8..0d7c597 100644
--- a/configs/sandbox_spl_defconfig
+++ b/configs/sandbox_spl_defconfig
@@ -61,6 +61,7 @@
 CONFIG_CMD_OSD=y
 CONFIG_CMD_PCI=y
 CONFIG_CMD_REMOTEPROC=y
+# CONFIG_CMD_SATA is not set
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y
 CONFIG_BOOTP_DNS2=y
@@ -109,7 +110,6 @@
 # CONFIG_SPL_SIMPLE_BUS is not set
 CONFIG_ADC=y
 CONFIG_ADC_SANDBOX=y
-CONFIG_SYS_SATA_MAX_DEVICE=2
 CONFIG_AXI=y
 CONFIG_AXI_SANDBOX=y
 CONFIG_SYS_IDE_MAXBUS=1
@@ -203,6 +203,10 @@
 CONFIG_SANDBOX_RESET=y
 CONFIG_DM_RTC=y
 CONFIG_SPL_DM_RTC=y
+CONFIG_SCSI=y
+CONFIG_SCSI_AHCI_PLAT=y
+CONFIG_SYS_SCSI_MAX_SCSI_ID=8
+CONFIG_SYS_SCSI_MAX_LUN=4
 CONFIG_SANDBOX_SERIAL=y
 CONFIG_SOUND=y
 CONFIG_SOUND_SANDBOX=y