treewide: Get rid of "NO_DDRx" selection

Change-Id: I8fa26e7a398eee855c31a76f0f89b4111368c2a6
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76387
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>

src/device/dram/Kconfig

@@ -1,57 +1,31 @@
 ## SPDX-License-Identifier: GPL-2.0-only
 
-# Short-term plan: Start adding 'USE_' and "NO_" options to each chip.
-#
-# Long-term plan: Every SoC or chipset should select the memory types they
-# use. When they all select their memory, the 'no_' options can be removed
-# and the defaults for all memory types can be set to n.
-
-config NO_DDR5
-	bool
-
-config NO_LPDDR4
-	bool
-
-config NO_DDR4
-	bool
-
-config NO_DDR3
-	bool
-
-config NO_DDR2
-	bool
-
 config USE_DDR5
 	bool
-	default n if NO_DDR5
-	default y
+	default n
 	help
 	  system supports DDR5 memory
 
 config USE_LPDDR4
 	bool
-	default n if NO_LPDDR4
-	default y
+	default n
 	help
 	  system supports LPDDR4 memory
 
 config USE_DDR4
 	bool
-	default n if NO_DDR4
-	default y
+	default n
 	help
 	  system supports DDR4 memory
 
 config USE_DDR3
 	bool
-	default n if NO_DDR3
-	default y
+	default n
 	help
 	  system supports DDR3 memory
 
 config USE_DDR2
 	bool
-	default n if NO_DDR2
-	default y
+	default n
 	help
 	  system supports DDR2 memory