chore: Add patch for Legion Go fixed display mode in Gamescope

spec_files/gamescope/gamescope.spec

@@ -14,6 +14,7 @@ Source2:        chimeraos.patch
 Source3:        crashfix.patch
 Source4:        add_720p_var.patch
 Source5:        touch_gestures_env.patch
+Source6:        legion_go.patch
 
 BuildRequires:  meson >= 0.54.0
 BuildRequires:  ninja-build
@@ -80,6 +81,7 @@ patch -Np1 < %{SOURCE2}
 patch -Np1 < %{SOURCE3}
 patch -Np1 < %{SOURCE4}
 patch -Np1 < %{SOURCE5}
+patch -Np1 < %{SOURCE6}
 
 %build
 cd gamescope

spec_files/gamescope/legion_go.patch

@@ -0,0 +1,30 @@
+diff --git a/src/drm.cpp b/src/drm.cpp
+index acff5e5..fdf58ee 100644
+--- a/src/drm.cpp
++++ b/src/drm.cpp
+@@ -101,6 +101,12 @@ static uint32_t galileo_display_rates[] =
+ 	90,
+ };
+
++static uint32_t legion_go_display_rates[] =
++{
++	60,
++	144,
++};
++
+ static uint32_t get_conn_display_info_flags(struct drm_t *drm, struct connector *connector)
+ {
+ 	if (!connector)
+@@ -911,8 +917,11 @@ static void parse_edid( drm_t *drm, struct connector *conn)
+ 		conn->valid_display_rates = std::span(galileo_display_rates);
+ 	} else {
+ 		conn->is_galileo_display = 0;
+-		if ( conn->is_steam_deck_display )
++		if ( conn->is_steam_deck_display ) {
+ 			conn->valid_display_rates = std::span(steam_deck_display_rates);
++		} else if ( strcmp(conn->make_pnp, "LEN") == 0 && strcmp(conn->model, "Go Display") == 0 ) {
++			conn->valid_display_rates = std::span(legion_go_display_rates);
++		}
+ 	}
+
+ 	drm_hdr_parse_edid(drm, conn, edid);