全志 添加PWM7参数

本文介绍如何在全志的硬件描述文件中添加PWM7的参数。这是一个针对Linux内核的设备树源文件（DTS）的修改，特定于全志的硬件平台。

以下是对修改的简要概述：

1. 文件修改：文件路径为lichee/linux-3.10/arch/arm/boot/dts/sun8iw11p1.dtsi。

2. 添加pwm7的参数
   
   diff --git a/lichee/linux-3.10/arch/arm/boot/dts/sun8iw11p1.dtsi b/lichee/linux-3.10/arch/arm/boot/dts/sun8iw11p1.dtsi
   index db8d122..102d0bd 100755
   --- a/lichee/linux-3.10/arch/arm/boot/dts/sun8iw11p1.dtsi
   +++ b/lichee/linux-3.10/arch/arm/boot/dts/sun8iw11p1.dtsi
   @@ -1254,9 +1254,9 @@
                   pwm: pwm@01c23400 {
                           compatible = "allwinner,sunx