vboot: use VBNV_ constants with VbNvGet()

The vboot1 library VbNvGet() / VbNvSet() functions use enum VbNvParam
(VBNV_*) constants.

The vboot2 library vb2_nv_get() / vb2_nv_set() functions use enum
vb2_nv_param constants.

Do not mix the two.  In the one instance where this happens in the
current code, we get lucky, because VBNV_DEV_BOOT_FASTBOOT_FULL_CAP
and VB2_NV_DEV_BOOT_FASTBOOT_FULL_CAP evaluate to the same value, so
this was harmless.  But fix that now so nobody else copy/pastes that
pattern for a param where this isn't true.

BUG=none
BRANCH=none
TEST=make runtests

Change-Id: I1facbe1d97591dc8b1e6b38717924b884949da57
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/764970
Reviewed-by: Julius Werner <jwerner@chromium.org>
diff --git a/firmware/lib/vboot_api_kernel.c b/firmware/lib/vboot_api_kernel.c
index 5c54c12..2cc1a88 100644
--- a/firmware/lib/vboot_api_kernel.c
+++ b/firmware/lib/vboot_api_kernel.c
@@ -511,7 +511,7 @@
 	dev_switch = shared->flags & VBSD_BOOT_DEV_SWITCH_ON;
 
 	VbNvLoad();
-	VbNvGet(&vnc, VB2_NV_DEV_BOOT_FASTBOOT_FULL_CAP,
+	VbNvGet(&vnc, VBNV_DEV_BOOT_FASTBOOT_FULL_CAP,
 		&allow_fastboot_full_cap);
 
 	if (0 == allow_fastboot_full_cap) {