arm64: Uprev Arm TF and adjust to BL31 parameter changes

This patch uprevs the Arm Trusted Firmware submodule to the new upstream
master (commit 42cdeb930).

Arm Trusted Firmware unified a bunch of stuff related to BL31 handoff
parameters across platforms which involved changing a few names around.
This patch syncs coreboot back up with that. They also made header
changes that now allow us to directly include all the headers we need
(in a safer and cleaner way than before), so we can get rid of some
structure definitions that were duplicated. Since the version of entry
point info parameters we have been using has been deprecated in Trusted
Firmware, this patch switches to the new version 2 parameter format.

NOTE: This may or may not stop Cavium from booting with the current
pinned Trusted Firmware blob. Cavium maintainers are still evaluating
whether to fix that later or drop the platform entirely.

Tested on GOOGLE_KEVIN (rk3399).

Change-Id: I0ed32bce5585ce191736f0ff2e5a94a9d2b2cc28
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34676
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
diff --git a/src/soc/cavium/cn81xx/soc.c b/src/soc/cavium/cn81xx/soc.c
index f1e11d3..8abb328 100644
--- a/src/soc/cavium/cn81xx/soc.c
+++ b/src/soc/cavium/cn81xx/soc.c
@@ -354,7 +354,7 @@
 	/* Point to devicetree in secure memory */
 	fdt_param.fdt_ptr = (uintptr_t)_sff8104;
 
-	register_bl31_param(&fdt_param.h);
+	cn81xx_register_bl31_param(&fdt_param.h);
 
 	static struct bl31_u64_param cbtable_param = {
 		.h = { .type = PARAM_COREBOOT_TABLE, },
@@ -362,7 +362,7 @@
 	/* Point to coreboot tables */
 	cbtable_param.value = (uint64_t)cbmem_find(CBMEM_ID_CBTABLE);
 	if (cbtable_param.value)
-		register_bl31_param(&cbtable_param.h);
+		cn81xx_register_bl31_param(&cbtable_param.h);
 }
 
 static void soc_init(struct device *dev)