security/vboot: Remove vboot_named_region_device(_rw)

Remove vboot_named_region_device(_rw) and use
fmap_locate_area_as_rdev(_rw) directly.

BRANCH=none
BUG=none
TEST=emerge-kukui coreboot

Change-Id: I244ac4e01ae5b80285162b3baffc0b30aa057bfb
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36922
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/security/vboot/vboot_logic.c b/src/security/vboot/vboot_logic.c
index 5facd28..71371cd 100644
--- a/src/security/vboot/vboot_logic.c
+++ b/src/security/vboot/vboot_logic.c
@@ -19,6 +19,7 @@
 #include <cbmem.h>
 #include <console/console.h>
 #include <console/vtxprintf.h>
+#include <fmap.h>
 #include <string.h>
 #include <timestamp.h>
 #include <vb2_api.h>
@@ -78,7 +79,7 @@
 		return VB2_ERROR_EX_READ_RESOURCE_INDEX;
 	}
 
-	if (vboot_named_region_device(name, &rdev))
+	if (fmap_locate_area_as_rdev(name, &rdev))
 		return VB2_ERROR_EX_READ_RESOURCE_SIZE;
 
 	if (rdev_readat(&rdev, buf, offset, size) != size)
@@ -265,7 +266,7 @@
 	else
 		name = "FW_MAIN_B";
 
-	return vboot_named_region_device(name, fw_main);
+	return fmap_locate_area_as_rdev(name, fw_main);
 }
 
 /**