Added a missing include in protozero/BUILD.gn

R=ssid@google.com

Change-Id: I7f829ab13c55cd690bd99b878f0337f48e982354
diff --git a/BUILD b/BUILD
index a34246e..2fec784 100644
--- a/BUILD
+++ b/BUILD
@@ -138,6 +138,7 @@
         "include/perfetto/protozero/field.h",
         "include/perfetto/protozero/message.h",
         "include/perfetto/protozero/message_handle.h",
+        "include/perfetto/protozero/packed_repeated_fields.h",
         "include/perfetto/protozero/proto_decoder.h",
         "include/perfetto/protozero/proto_utils.h",
         "include/perfetto/protozero/scattered_heap_buffer.h",
@@ -256,6 +257,7 @@
         "include/perfetto/protozero/field.h",
         "include/perfetto/protozero/message.h",
         "include/perfetto/protozero/message_handle.h",
+        "include/perfetto/protozero/packed_repeated_fields.h",
         "include/perfetto/protozero/proto_decoder.h",
         "include/perfetto/protozero/proto_utils.h",
         "include/perfetto/protozero/scattered_heap_buffer.h",
@@ -509,6 +511,7 @@
         "include/perfetto/protozero/field.h",
         "include/perfetto/protozero/message.h",
         "include/perfetto/protozero/message_handle.h",
+        "include/perfetto/protozero/packed_repeated_fields.h",
         "include/perfetto/protozero/proto_decoder.h",
         "include/perfetto/protozero/proto_utils.h",
         "include/perfetto/protozero/scattered_heap_buffer.h",
@@ -603,6 +606,7 @@
         "include/perfetto/protozero/field.h",
         "include/perfetto/protozero/message.h",
         "include/perfetto/protozero/message_handle.h",
+        "include/perfetto/protozero/packed_repeated_fields.h",
         "include/perfetto/protozero/proto_decoder.h",
         "include/perfetto/protozero/proto_utils.h",
         "include/perfetto/protozero/scattered_heap_buffer.h",
@@ -884,6 +888,7 @@
         "include/perfetto/protozero/field.h",
         "include/perfetto/protozero/message.h",
         "include/perfetto/protozero/message_handle.h",
+        "include/perfetto/protozero/packed_repeated_fields.h",
         "include/perfetto/protozero/proto_decoder.h",
         "include/perfetto/protozero/proto_utils.h",
         "include/perfetto/protozero/scattered_heap_buffer.h",
diff --git a/include/perfetto/protozero/BUILD.gn b/include/perfetto/protozero/BUILD.gn
index 94c2ef9..7749684 100644
--- a/include/perfetto/protozero/BUILD.gn
+++ b/include/perfetto/protozero/BUILD.gn
@@ -21,6 +21,7 @@
     "field.h",
     "message.h",
     "message_handle.h",
+    "packed_repeated_fields.h",
     "proto_decoder.h",
     "proto_utils.h",
     "scattered_heap_buffer.h",