Add explicit dependencies on jni_headers

Preparation for removing implicit include paths for jni.h from soong.

Also remove unnecessary jni.h includes from PathParser.{h,cpp}.

Bug: 152482542
Test: lunch aosp_x86_64 && m checkbuild
Change-Id: Ib18afa3d2c93ed3ce69204286d5177991100fd7e
Exempt-From-Owner-Approval: build refactoring
diff --git a/tools/dump-coverage/Android.bp b/tools/dump-coverage/Android.bp
index 4519ce3..94356eb 100644
--- a/tools/dump-coverage/Android.bp
+++ b/tools/dump-coverage/Android.bp
@@ -19,6 +19,7 @@
     name: "libdumpcoverage",
     srcs: ["dump_coverage.cc"],
     header_libs: [
+        "jni_headers",
         "libopenjdkjvmti_headers",
     ],