cros: Update ec_commands to latest version

This file has changed quite a bit in the last 5 years as the capabilities
of the ECs have grown. Sync it up with the copy in coreboot commit
b9141f2215.

The only change is the addition of EC_VBNV_BLOCK_SIZE_V2. This is needed
because U-Boot uses the new v2 vboot API and this is not currently fully
supported by Chromium OS firmware.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/misc/cros_ec_sandbox.c b/drivers/misc/cros_ec_sandbox.c
index dedad9b..d741554 100644
--- a/drivers/misc/cros_ec_sandbox.c
+++ b/drivers/misc/cros_ec_sandbox.c
@@ -365,7 +365,7 @@
 		struct fmap_entry *entry;
 		int ret, size;
 
-		entry = &ec->ec_config.region[EC_FLASH_REGION_RW];
+		entry = &ec->ec_config.region[EC_FLASH_REGION_ACTIVE];
 
 		switch (req->cmd) {
 		case EC_VBOOT_HASH_RECALC:
@@ -420,7 +420,7 @@
 
 		switch (req->region) {
 		case EC_FLASH_REGION_RO:
-		case EC_FLASH_REGION_RW:
+		case EC_FLASH_REGION_ACTIVE:
 		case EC_FLASH_REGION_WP_RO:
 			entry = &ec->ec_config.region[req->region];
 			resp->offset = entry->offset;