moved tasks related to amd in its own role

ansible/roles/amd/tasks/main.yml

@@ -1,4 +1,9 @@
 ---
+- name: Install Xorg AMDGPU (AMD graphics driver for Xorg)
+  become: true
+  pacman:
+    name: xf86-video-amdgpu
+    state: present
 - name: Install Vulkan Radeon (Vulkan for AMDGPU)
   become: true
   pacman: