app: aboot: dm-verity's EIO mode is not applicable for AVB2.0

With AVB 2.0 feature enabled, all dm-verity errors are treated as
critical and is never allowed to boot. This change limits EIO errors to
legacy verified boot version where device is allowed to boot in logging
mode.

Change-Id: Ibeb5d6aafaf4ec66bcd47908c18aa960cc9e0941
diff --git a/app/aboot/aboot.c b/app/aboot/aboot.c
index 55a145a..07b5687 100755
--- a/app/aboot/aboot.c
+++ b/app/aboot/aboot.c
@@ -1154,7 +1154,7 @@
 	generate_atags(tags, final_cmdline, ramdisk, ramdisk_size);
 #endif
 
-#if VERIFIED_BOOT || VERIFIED_BOOT_2
+#if VERIFIED_BOOT
 	if (VB_M <= target_get_vb_version())
 	{
 		if (device.verity_mode == 0) {