ARM: mediatek: Low-level-debug for mt6592

This patch changes the description of the low-level-debug port. SoC mt8127 and
mt6592 have the same uart port and the same mapping. We just change the
description to add low-level-debug to mt6592.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm/Kconfig.debug

@@ -973,7 +973,7 @@ choice
 		  for Mediatek mt6589 based platforms on UART0.
 
 	config DEBUG_MT8127_UART0
-		bool "Mediatek mt8127 UART0"
+		bool "Mediatek mt8127/mt6592 UART0"
 		depends on ARCH_MEDIATEK
 		select DEBUG_UART_8250
 		help