cpu/intel/model_206ax: Remove the notion of sockets

With the memory controller the separate sockets becomes a useless
distinction. They all used the same code anyway.

UNTESTED: This also updates autoport.

Change-Id: I044d434a5b8fca75db9eb193c7ffc60f3c78212b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/31031
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Tristan Corrick <tristan@corrick.kiwi>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/cpu/intel/model_206ax/Kconfig b/src/cpu/intel/model_206ax/Kconfig
index cb09d23..7f73da9 100644
--- a/src/cpu/intel/model_206ax/Kconfig
+++ b/src/cpu/intel/model_206ax/Kconfig
@@ -13,6 +13,7 @@
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
+	select MMX
 	select SSE2
 	select UDELAY_TSC
 	select TSC_CONSTANT_RATE