qemu: move i440fx bits

Prepare tree for adding q35 support:
Move emulation/qemu-x86 to emulation/qemu-i440fx.
Rename some stuff to include 'i440fx'.

Change-Id: Ib8c58175c5734cfcda1b22404ef52c09d38f0462
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3429
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/mainboard/emulation/qemu-i440fx/Kconfig

@@ -0,0 +1,37 @@
+if BOARD_EMULATION_QEMU_X86_I440FX
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select ARCH_X86
+	select CPU_QEMU_X86
+	select SOUTHBRIDGE_INTEL_I82371EB
+	select CACHE_AS_RAM
+	select HAVE_OPTION_TABLE
+	select HAVE_PIRQ_TABLE
+	select HAVE_ACPI_TABLES
+	select HAVE_ACPI_RESUME
+	select BOARD_ROMSIZE_KB_256
+	select EARLY_CBMEM_INIT
+
+config MAINBOARD_DIR
+	string
+	default emulation/qemu-i440fx
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "QEMU x86 i440fx/piix4"
+
+config IRQ_SLOT_COUNT
+	int
+	default 6
+
+config DCACHE_RAM_BASE
+	hex
+	default 0xd0000
+
+config DCACHE_RAM_SIZE
+	hex
+	default 0x10000
+
+
+endif # BOARD_EMULATION_QEMU_X86