libxposed: Adapt some of API 101 required by gkms-localify

interface/src/main/aidl/io/github/libxposed/service/IXposedService.aidl

@@ -2,7 +2,12 @@ package io.github.libxposed.service;
 import io.github.libxposed.service.IXposedScopeCallback;
 
 interface IXposedService {
-    const int API = 100;
+    const int LIB_API = 101;
+    const int API = LIB_API; // compatibility alias
+
+    const long PROP_CAP_SYSTEM = 1L;
+    const long PROP_CAP_REMOTE = 1L << 1;
+    const long PROP_RT_API_PROTECTION = 1L << 2;
 
     const int FRAMEWORK_PRIVILEGE_ROOT = 0;
     const int FRAMEWORK_PRIVILEGE_CONTAINER = 1;
@@ -18,6 +23,7 @@ interface IXposedService {
     String getFrameworkVersion() = 3;
     long getFrameworkVersionCode() = 4;
     int getFrameworkPrivilege() = 5;
+    long getFrameworkProperties() = 6;
 
     // scope utilities
     List<String> getScope() = 10;

service/src/main/java/io/github/libxposed/service/XposedService.java

@@ -201,6 +201,20 @@ public final class XposedService {
         }
     }
 
+    /**
+     * Get the Xposed framework properties of current implementation.
+     *
+     * @return Framework properties bitmask
+     * @throws ServiceException If the service is dead or an error occurred
+     */
+    public long getFrameworkProperties() {
+        try {
+            return mService.getFrameworkProperties();
+        } catch (RemoteException e) {
+            throw new ServiceException(e);
+        }
+    }
+
     /**
      * Get the Xposed framework privilege of current implementation.
      *