RPi4: enable 4kp60 output by default

Align RPi4 with RPi5 which supports 4kp60 output OOTB.

Note that this will only affect new installations, config.txt
on existing installations won't be altered by this change.

Signed-off-by: Matthias Reichl <hias@horus.com>

projects/RPi/devices/RPi4/config/config.txt

@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
+# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
+################################################################################
+# Bootloader configuration
+# config.txt version v1 (do not remove or change this line!)
+################################################################################
+# For more options and information see
+# http://rpf.io/configtxt
+################################################################################
+
+# Default GPU memory split, 76MB are needed for H264 decoder
+gpu_mem=76
+
+# Don't send initial active source message.
+# Avoids bringing CEC (enabled TV) out of standby and channel switch when
+# rebooting.
+hdmi_ignore_cec_init=1
+
+# Enable 4kp60 output on the first HDMI connector
+hdmi_enable_4kp60=1
+
+[all]
+################################################################################
+# Use distroconfig-composite.txt instead of distroconfig.txt to enable
+# composite video output.
+# The composite video mode needs to be configured in cmdline.txt:
+# For PAL add: video=Composite-1:720x576@50ie
+# For NTSC add: video=Composite-1:720x480@60ie
+################################################################################
+include distroconfig.txt
+#include distroconfig-composite.txt
+
+# uncomment to enable analog audio output
+#dtparam=audio=on
+#audio_pwm_mode=1
+
+# uncomment to enable infrared remote receiver connected to GPIO 18
+#dtoverlay=gpio-ir,gpio_pin=18
+