soc/amd/picasso/mrc_cache.c: Remove unused <bootstate.h>

Change-Id: Ied235972d24276d7c88a2f50f192d69d24ae6e05
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45816
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

src/soc/amd/picasso/mrc_cache.c

@@ -3,7 +3,6 @@
 #include <acpi/acpi.h>
 #include <assert.h>
 #include <boot_device.h>
-#include <bootstate.h>
 #include <commonlib/region.h>
 #include <console/console.h>
 #include <fmap.h>