av7110: Fix driver name (against git)

This patch changes the name of the av7110 driver from the
generic "dvb" to "av7110", to be descriptive of the driver.

I've included Oliver Endriss's ack from the original post, which contained a mangled patch. The content of the patch is unchanged.

@@ -2890,7 +2890,7 @@ MODULE_DEVICE_TABLE(pci, pci_tbl);
 
 
 static struct saa7146_extension av7110_extension_driver = {
-	.name		= "dvb",
+	.name		= "av7110",
 	.flags		= SAA7146_USE_I2C_IRQ,
 
 	.module		= THIS_MODULE,