Enable DSI 7nm PHY driver in MSM DRM

configname: CONFIG_DRM_MSM_DSI_7NM_PHY

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Enable DSI 7nm PHY driver in MSM DRM
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Choose this option if DSI PHY on SM8150/SM8250/SC7280 is used on
the platform.