reports: fix GO-2021-0061 and GO-2021-0036

Both were missing symbols in the additional_packages section.

Change-Id: I65d159ef58d169743ead440c2fa79d71e183285a
Reviewed-on: https://go-review.googlesource.com/c/vulndb/+/326509
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
diff --git a/reports/GO-2020-0036.yaml b/reports/GO-2020-0036.yaml
index 976ba35..0c6a8e3 100644
--- a/reports/GO-2020-0036.yaml
+++ b/reports/GO-2020-0036.yaml
@@ -3,6 +3,8 @@
   # all of the incompatible versions of github.com/go-yaml/yaml
   # are affected
   - module: github.com/go-yaml/yaml
+    symbols:
+      - yaml_parser_fetch_more_tokens
 versions:
   - fixed: v2.2.8
 description: |
diff --git a/reports/GO-2021-0061.yaml b/reports/GO-2021-0061.yaml
index 7e8c701..af187e4 100644
--- a/reports/GO-2021-0061.yaml
+++ b/reports/GO-2021-0061.yaml
@@ -3,6 +3,8 @@
   # all of the incompatible versions of github.com/go-yaml/yaml
   # are affected
   - module: github.com/go-yaml/yaml
+    symbols:
+      - decoder.unmarshal
 versions:
   - fixed: v2.2.3
 description: |