cx3588 Recovery HDMI 没显示

Recovery 下不支持双显示，也不支持热插拔。如果需要从 HDMI 显示，代码中没有如下修改，
请添加如下的修改，然后插着 HDMI 开机。

diff --git a/bootable/recovery/minui/graphics_drm.cpp b/bootable/recovery/minui/graphics_drm.cpp
old mode 100644
new mode 100755
index 9e10551a50…08959f5d62
— a/bootable/recovery/minui/graphics_drm.cpp
+++ b/bootable/recovery/minui/graphics_drm.cpp
@@ -240,10 +240,10 @@ drmModeConnector* MinuiBackendDrm::FindMainMonitor(int fd, drmModeRes* resources
uint32_t* mode_index) {
/* Look for LVDS/eDP/DSI connectors. Those are the main screens. */
static constexpr unsigned kConnectorPriority[] = {

•   DRM_MODE_CONNECTOR_HDMIA,
  1

  DRM_MODE_CONNECTOR_LVDS,
  DRM_MODE_CONNECTOR_eDP,
  DRM_MODE_CONNECTOR_DSI,

• DRM_MODE_CONNECTOR_HDMIA,
  };

drmModeConnector* main_monitor_connector = nullptr;