kbuild: Allow drivers to fit src/drivers/[X]/[Y]/ scheme

Reorder drivers to fit src/drivers/[X]/[Y]/ scheme to make
them pluggable.

Also, fix up the following driver subdirectories by switching
to the src/drivers/[X]/[Y]/ scheme as these are hard requirements
for the main change:

* drivers/intel
* drivers/pc80
* drivers/dec

Change-Id: I455d3089a317181d5b99bf658df759ec728a5f6b
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14047
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

util/autoport/ec_fixme.go

@@ -64,7 +64,7 @@ Method(_PTS,1)
 	defer si.Close()
 
 	if hasKeyboard {
-		si.WriteString("#include <drivers/pc80/ps2_controller.asl>\n")
+		si.WriteString("#include <drivers/pc80/pc/ps2_controller.asl>\n")
 		MainboardInit += fmt.Sprintf("\tpc_keyboard_init();\n")
 		MainboardIncludes = append(MainboardIncludes, "pc80/keyboard.h")
 	}

util/autoport/ec_lenovo.go

@@ -57,7 +57,7 @@ Method(_PTS,1)
 	si := Create(ctx, "acpi/superio.asl")
 	defer si.Close()
 
-	si.WriteString("#include <drivers/pc80/ps2_controller.asl>\n")
+	si.WriteString("#include <drivers/pc80/pc/ps2_controller.asl>\n")
 
 	dock := Create(ctx, "dock.c")
 	defer dock.Close()