vboot: relocate call to vboot_save_recovery_reason_vbnv

Relocate call to vboot_save_recovery_reason_vbnv and rename
vb2_clear_recovery_reason_vbnv for consistency.

BUG=b:124141368, b:124192753
TEST=make clean && make test-abuild
BRANCH=none

Change-Id: I111cc23cf3d4b16fdb058dd395ac17a97f23a53f
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33551
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/security/vboot/vboot_loader.c

@@ -41,7 +41,6 @@ static void vboot_prepare(void)
 		/* Note: this path is not used for VBOOT_RETURN_FROM_VERSTAGE */
 		verstage_main();
 		car_set_var(vboot_executed, 1);
-		vboot_save_recovery_reason_vbnv();
 	} else if (verstage_should_load()) {
 		struct cbfsf file;
 		struct prog verstage =