Use newly introduced hidl_handle in DumpstateDefault

The dumpstate hal passes a hild_handle, but DumpstateDefault was
expecting a native_handle_t*.  This was exposed when
Id7dbc646b50f132e240bfbba719a2d36585ccc35 caused the Android.mk
file to be picked up.

Bug: 31982882
Bug: 32089785
Test: builds
Change-Id: I48c84b6d19a93ceb0641be517f378fd6aba45962
diff --git a/dumpstate/1.0/default/DumpstateDevice.cpp b/dumpstate/1.0/default/DumpstateDevice.cpp
index fac4ff3..a279b89 100644
--- a/dumpstate/1.0/default/DumpstateDevice.cpp
+++ b/dumpstate/1.0/default/DumpstateDevice.cpp
@@ -13,7 +13,7 @@
 namespace implementation {
 
 // Methods from ::android::hardware::dumpstate::V1_0::IDumpstateDevice follow.
-Return<void> DumpstateDevice::dumpstateBoard(const native_handle_t* handle) {
+Return<void> DumpstateDevice::dumpstateBoard(const hidl_handle& handle) {
     if (handle->numFds < 1) {
         ALOGE("no FDs\n");
         return Void();