Add DiagnosticsTool domain for SELinux access.

Bug: 301300623
Change-Id: Ic71cd664e1c6c99300666bf73eb27486a710d4b5
diff --git a/diagnosticstool/diagnosticstool.mk b/diagnosticstool/diagnosticstool.mk
new file mode 100644
index 0000000..67fbd88
--- /dev/null
+++ b/diagnosticstool/diagnosticstool.mk
@@ -0,0 +1 @@
+PRODUCT_PRIVATE_SEPOLICY_DIRS += device/google/gs-common/diagnosticstool/sepolicy