applypatch: Add determine the return value of ApplyDiffPatch and
capture the error flow.

Construct ota package which is bsdiff exception scene ,then do
simulation test, native code can not capture exception scenes.

Test: recovery_component_test
Test: Apply an bsdiff exception scene ota package.
Change-Id: Icd9f6eac78739bd35c74b9fcaaf8154335d680a5
diff --git a/applypatch/imgpatch.cpp b/applypatch/imgpatch.cpp
index 7d8b736..3d905f7 100644
--- a/applypatch/imgpatch.cpp
+++ b/applypatch/imgpatch.cpp
@@ -100,7 +100,10 @@
         printf("source data too short\n");
         return -1;
       }
-      ApplyBSDiffPatch(old_data + src_start, src_len, patch, patch_offset, sink, ctx);
+      if (ApplyBSDiffPatch(old_data + src_start, src_len, patch, patch_offset, sink, ctx) != 0) {
+        printf("Failed to apply bsdiff patch.\n");
+        return -1;
+      }
     } else if (type == CHUNK_RAW) {
       const char* raw_header = &patch->data[pos];
       pos += 4;