Fix return type marshalling on IsKeyStorePrivateKeyEntry (dotnet#103825)

src/libraries/Common/src/Interop/Android/System.Security.Cryptography.Native.Android/Interop.X509.cs

@@ -33,7 +33,7 @@ internal static byte[] X509Encode(SafeX509Handle x)
             return encoded;
         }
         [LibraryImport(Libraries.AndroidCryptoNative, EntryPoint = "AndroidCryptoNative_X509IsKeyStorePrivateKeyEntry")]
-        [return: MarshalAs(UnmanagedType.U1)]
+        [return: MarshalAs(UnmanagedType.Bool)]
         internal static partial bool IsKeyStorePrivateKeyEntry(IntPtr handle);
         [LibraryImport(Libraries.AndroidCryptoNative, EntryPoint = "AndroidCryptoNative_X509GetCertificateForPrivateKeyEntry")]
         private static partial IntPtr GetPrivateKeyEntryCertificate(IntPtr privatKeyEntryHandle);