rmodules: add support for rmodtool

The following patches were taken from upstreamed and
massaged to work in our repo. The patches are squashed
together.

http://review.coreboot.org/5120
http://review.coreboot.org/5364
http://review.coreboot.org/5365
http://review.coreboot.org/5366
http://review.coreboot.org/5367
http://review.coreboot.org/5368
http://review.coreboot.org/5369
http://review.coreboot.org/5370
http://review.coreboot.org/5371
http://review.coreboot.org/5372
http://review.coreboot.org/5384
http://review.coreboot.org/5373
http://review.coreboot.org/5374
http://review.coreboot.org/5375
http://review.coreboot.org/5376
http://review.coreboot.org/5377
http://review.coreboot.org/5363
http://review.coreboot.org/5378
http://review.coreboot.org/5379
http://review.coreboot.org/5407

BUG=chrome-os-partner:27094
BRANCH=None
CQ-DEPEND=CL:*157856
TEST=Built and booted rambi with these set of patches.

Change-Id: I481352b23f6b60ff495c1a6bd3c21b52d817de3d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/190921
Reviewed-by: Gabe Black <gabeblack@chromium.org>

src/vendorcode/google/chromeos/Makefile.inc

@@ -55,6 +55,7 @@ VB_INCLUDES += -I$(VB_SOURCE)/firmware/include
 INCLUDES += $(VB_INCLUDES)
 
 VBOOT_STUB_ELF = $(obj)/vendorcode/google/chromeos/vbootstub.elf
+VBOOT_STUB = $(VBOOT_STUB_ELF).rmod
 VBOOT_STUB_DOTO = $(VBOOT_STUB_ELF:.elf=.o)
 
 # Dependency for the vboot rmodules. Ordering matters.

src/vendorcode/google/chromeos/vboot_wrapper.c

@@ -28,10 +28,6 @@
 #include "vboot_context.h"
 #include "vboot_handoff.h"
 
-static void vboot_wrapper(struct vboot_context *context);
-
-DEFINE_RMODULE_HEADER(vboot_wrapper_header, vboot_wrapper, RMODULE_TYPE_VBOOT);
-
 /* Keep a global context pointer around for the callbacks to use. */
 static struct vboot_context *gcontext;
 
@@ -67,12 +63,14 @@ static void parse_component(const struct components *components, int num,
 	fw->size = (uint32_t)components->entries[num].size;
 }
 
-static void vboot_wrapper(struct vboot_context *context)
+static void vboot_wrapper(void *arg)
 {
 	int i;
 	VbError_t res;
 	const struct components *components;
+	struct vboot_context *context;
 
+	context = arg;
 	gcontext = context;
 
 	VbExDebug("Calling VbInit()\n");
@@ -276,3 +274,4 @@ VbError_t VbExTpmSendReceive(const uint8_t *request, uint32_t request_length,
 	return VBERROR_SUCCESS;
 }
 
+RMODULE_ENTRY(vboot_wrapper);