pick graphlcd support from DDT but include it in another way

Origin commit data
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Branch: ni/coolstream
Commit: 3093f50831
Author: vanhofen <vanhofen@gmx.de>
Date: 2019-10-26 (Sat, 26 Oct 2019)

Origin message was:
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- pick graphlcd support from DDT but include it in another way

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No further description and justification available within origin commit message!

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This commit was generated by Migit

src/driver/volume.cpp

@@ -173,6 +173,9 @@ void CVolume::setVolume(const neutrino_msg_t key)
 						}
 					}
 					g_settings.current_volume = v;
+#ifdef ENABLE_GRAPHLCD
+					nGLCD::ShowVolume(true);
+#endif
 				}
 			}
 			else if (msg == CRCInput::RC_home)
@@ -207,6 +210,9 @@ void CVolume::setVolume(const neutrino_msg_t key)
 		}
 	} while (msg != CRCInput::RC_timeout);
 
+#ifdef ENABLE_GRAPHLCD
+	nGLCD::ShowVolume(false);
+#endif
 	hideVolscale();
 }