Intel FSP: add a shared set of functions for the FSP

- Move the non chipset-specific fsp pieces out of the chipset into a
shared area.  This is used by northbridge / southbrige / SOC code.  It
pulls in pieces from Kconfig, Makefile and FSP specific code.
- Enabled in the CPU code with a Kconfig "select PLATFORM_USES_FSP"

Change-Id: I7ffa934c1df09b71d48a876a56e3b888685870b8
Signed-off-by: Martin Roth <gaumless@gmail.com>
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/5635
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>

src/include/timestamp.h

@@ -43,12 +43,16 @@ enum timestamp_id {
 	TS_END_COPYRAM = 9,
 	TS_START_RAMSTAGE = 10,
 	TS_DEVICE_ENUMERATE = 30,
+	TS_FSP_BEFORE_ENUMERATE,
+	TS_FSP_AFTER_ENUMERATE,
 	TS_DEVICE_CONFIGURE = 40,
 	TS_DEVICE_ENABLE = 50,
 	TS_DEVICE_INITIALIZE = 60,
 	TS_DEVICE_DONE = 70,
 	TS_CBMEM_POST = 75,
 	TS_WRITE_TABLES = 80,
+	TS_FSP_BEFORE_FINALIZE,
+	TS_FSP_AFTER_FINALIZE,
 	TS_LOAD_PAYLOAD = 90,
 	TS_ACPI_WAKE_JUMP = 98,
 	TS_SELFBOOT_JUMP = 99,