[iot] Update libavb in u-boot

This commit did:
1. Sync AVB lib with external/avb, head of commit is:
    commit 6d5326a945c2d17d5d0e7718d5cb97663c3b33a2
    Author: Neal Ostrem <nealo@google.com>
    Date:   Tue Apr 24 13:09:45 2018 -0700

        Merge fix/changes required after merge from AOSP ToT.

        Change library name to one used by AT.
        Test: Built successfully and unit tests pass.
        Change-Id: I5e5fc9a6010d96cfecfc6faf0858ba930cba65a0
2. Change product id in ATX to be full zeros to sync with
   external/avb.
3. Fix build errors and implement ops fsl_set_key_version.
4. Move most nxp modified code to lib/avb/fsl/.

Test: build and boot successfully for imx7d_pico and imx8m_phanbell.

Change-Id: I199a035fe8267b10955299a4b745458d40a2e754
Signed-off-by: Luo Ji <ji.luo@nxp.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/include/fsl_avb.h b/include/fsl_avb.h
index 9cf3249cd7..2bb3d427cc 100644
--- a/include/fsl_avb.h
+++ b/include/fsl_avb.h
@@ -195,4 +195,28 @@ AvbIOResult fsl_read_permanent_attributes(
  */
 AvbIOResult fsl_read_permanent_attributes_hash(
     AvbAtxOps* atx_ops, uint8_t hash[AVB_SHA256_DIGEST_SIZE]);
+
+/* Provides the key version of a key used during verification. This may be
+ * useful for managing the minimum key version.
+ */
+void fsl_set_key_version(AvbAtxOps* atx_ops,
+                          size_t rollback_index_location,
+                          uint64_t key_version);
+
+/* This is the fast version of avb_ab_flow(), this function will
+ * not check another slot if one slot can pass the verify (or verify
+ * fail is acceptable). */
+AvbABFlowResult avb_ab_flow_fast(AvbABOps* ab_ops,
+                            const char* const* requested_partitions,
+                            AvbSlotVerifyFlags flags,
+                            AvbHashtreeErrorMode hashtree_error_mode,
+                            AvbSlotVerifyData** out_data);
+
+/* This is for legacy i.mx6/7 which don't enable A/B but want to
+ * verify boot/recovery with AVB */
+AvbABFlowResult avb_single_flow(AvbABOps* ab_ops,
+                            const char* const* requested_partitions,
+                            AvbSlotVerifyFlags flags,
+                            AvbHashtreeErrorMode hashtree_error_mode,
+                            AvbSlotVerifyData** out_data);
 #endif /* __FSL_AVB_H__ */