glcd: add respawn function

Origin commit data
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Branch: ni/coolstream
Commit: 340d8423b7
Author: vanhofen <vanhofen@gmx.de>
Date: 2020-06-26 (Fri, 26 Jun 2020)

Origin message was:
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- glcd: add respawn function

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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/glcd/glcd.cpp

@@ -1203,6 +1203,12 @@ void cGLCD::Exit()
 	}
 }
 
+void cGLCD::Respawn()
+{
+	Exit();
+	cGLCD::getInstance();
+}
+
 void cGLCD::Rescan()
 {
 	doRescan = true;