tools: lpc: add internal/sys to handler

The lpc data handler will need a syscall handle.  Add the syscall
interface.

Change-Id: I8a9f687e9457709e2d0f0fca3e712719fa106e80
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/test/tools_lpc_unittest.cpp b/test/tools_lpc_unittest.cpp
index 5b7ddb1..906d2b4 100644
--- a/test/tools_lpc_unittest.cpp
+++ b/test/tools_lpc_unittest.cpp
@@ -13,9 +13,10 @@
 
 TEST(LpcHandleTest, verifySendsFileContents)
 {
+    internal::InternalSysMock sysMock;
     BlobInterfaceMock blobMock;
 
-    LpcDataHandler handler(&blobMock);
+    LpcDataHandler handler(&blobMock, &sysMock);
     std::uint16_t session = 0xbeef;
     std::string filePath = "/asdf";