nb/intel/pineview: Move to C_ENVIRONMENT_BOOTBLOCK

This adds a file i82801gx/bootblock_gcc.c since other targets that
don't yet C_ENVIRONMENT_BOOTBLOCK still use the romcc compiled
bootblock.c.

Tested on Foxconn D41S.

Change-Id: I7e74838b0d5e9c192082084cfd9821996f0e4c50
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30939
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/cpu/intel/socket_FCBGA559/Kconfig

@@ -21,4 +21,11 @@ config DCACHE_RAM_SIZE
 	hex
 	default 0x4000
 
+config DCACHE_BSP_STACK_SIZE
+	hex
+	default 0x2000
+	help
+	  The amount of anticipated stack usage in CAR by bootblock and
+	  other stages.
+
 endif

src/cpu/intel/socket_FCBGA559/Makefile.inc

@@ -8,7 +8,9 @@ subdirs-y += ../microcode
 subdirs-y += ../hyperthreading
 subdirs-y += ../speedstep
 
-cpu_incs-y += $(src)/cpu/intel/car/non-evict/cache_as_ram.S
+bootblock-y += ../car/bootblock.c
+bootblock-y += ../car/non-evict/cache_as_ram.S
+
 postcar-y += ../car/non-evict/exit_car.S
 
 romstage-y += ../car/romstage.c