[incfs] Use the new libincfs API for file status checking

libincfs got a new set of functions for checking the file loaded
status, which works more efficiently than getting filled ranges.

Bug: 183067554
Test: atest IncrementalServiceTest
Change-Id: I3b96bf409f1778c5a89e4802e2005197f70ce0cb
diff --git a/services/incremental/ServiceWrappers.cpp b/services/incremental/ServiceWrappers.cpp
index 2a06122..eb204c5 100644
--- a/services/incremental/ServiceWrappers.cpp
+++ b/services/incremental/ServiceWrappers.cpp
@@ -197,6 +197,13 @@
         }
         return {filledBlockCount, totalBlocksCount};
     }
+    incfs::LoadingState isFileFullyLoaded(const Control& control,
+                                          std::string_view path) const final {
+        return incfs::isFullyLoaded(control, path);
+    }
+    incfs::LoadingState isEverythingFullyLoaded(const Control& control) const final {
+        return incfs::isEverythingFullyLoaded(control);
+    }
     ErrorCode link(const Control& control, std::string_view from, std::string_view to) const final {
         return incfs::link(control, from, to);
     }