improve structure; move stuff to relevant folders

scripts/gpu/amd-gpu-performance.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=AMD GPU High Performance Mode
+After=multi-user.target
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash -c 'echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level'
+ExecStart=/bin/bash -c 'echo 2 > /sys/class/drm/card0/device/pp_dpm_sclk'
+ExecStart=/bin/bash -c 'echo 3 > /sys/class/drm/card0/device/pp_dpm_mclk'
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target