[vm] Fix dynamic module build.

Broken by 18aa7d3678.

TEST=ci
Cq-Include-Trybots: luci.dart.try:vm-aot-dyn-linux-debug-x64-try,vm-aot-dyn-linux-product-x64-try,vm-dyn-linux-debug-x64-try
Change-Id: If6a11d4f541012c0503d82b4e26592ef0b810208
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/431560
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Auto-Submit: Ryan Macnak <rmacnak@google.com>

runtime/vm/interpreter.cc

@@ -23,6 +23,7 @@
 #include "vm/object.h"
 #include "vm/object_store.h"
 #include "vm/os_thread.h"
+#include "vm/runtime_entry.h"
 #include "vm/stack_frame_kbc.h"
 #include "vm/symbols.h"