scsi: Forceably finish migration to DM_SCSI

The migration deadline for moving to DM_SCSI was v2023.04. A further
reminder was sent out in August 2023 to the remaining platforms that had
not migrated already, and that a few more over the line (or configs
deleted).

With this commit we:
- Rename CONFIG_DM_SCSI to CONFIG_SCSI.
- Remove all of the non-DM SCSI code. This includes removing other
  legacy symbols and code and removes some legacy non-DM AHCI code.
- Some platforms that had previously been DM_SCSI=y && SCSI=n are now
  fully migrated to DM_SCSI as a few corner cases in the code assumed
  DM_SCSI=y meant SCSI=y.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index a801412..7e21c4a 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1,46 +1,9 @@
 config SCSI
-	bool "Support SCSI controllers"
+	bool "Support SCSI controllers with driver model"
 	help
 	  This enables support for SCSI (Small Computer System Interface),
 	  a parallel interface widely used with storage peripherals such as
 	  hard drives and optical drives. The SCSI standards define physical
 	  interfaces as well as protocols for controlling devices and
-	  tranferring data.
-
-config DM_SCSI
-	bool "Support SCSI controllers with driver model"
-	help
-	  This option enables the SCSI (Small Computer System Interface) uclass
-	  which supports SCSI and SATA HDDs. For every device configuration
-	  (IDs/LUNs) a block device is created with RAW read/write and
-	  filesystem support.
-
-if SCSI && !DM_SCSI
-
-config SCSI_AHCI_PLAT
-	bool "Platform-specific init of AHCI"
-	help
-	  This enables a way for boards to set up an AHCI device manually, by
-	  called ahci_init() and providing an ahci_reset() mechanism.
-
-	  This is deprecated. An AHCI driver should be provided instead.
-
-config SYS_SCSI_MAX_SCSI_ID
-	int "Maximum supported SCSI ID"
-	default 1
-	help
-	  Sets the maximum number of SCSI IDs to scan when looking for devices.
-	  IDs from 0 to (this value - 1) are scanned.
-
-	  This is deprecated and is not needed when BLK is enabled.
-
-config SYS_SCSI_MAX_LUN
-	int "Maximum support SCSI LUN"
-	default 1
-	help
-	  Sets the maximum number of SCSI Logical Unit Numbers (LUNs) to scan on
-	  devices. LUNs from 0 to (this value - 1) are scanned.
-
-	  This is deprecated and is not needed when CONFIG_DM_SCSI is enabled.
-
-endif
+	  tranferring data. For every device configuration (IDs/LUNs) a block
+	  device is created with RAW read/write and filesystem support.