intel_fb: remove x201 workaround

The workaround is no longer needed as we now propagate the proper device
ID as BDF to the kernel in the platform driver.

Issue #1848

repos/dde_linux/patches/intel_fb_x201.patch

@@ -1,15 +0,0 @@
-+++ a/drivers/gpu/drm/i915/i915_gem_gtt.c
-+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
-@@ -1034,7 +1034,11 @@
- 				  unsigned int num_entries,
- 				  bool unused)
- {
--	intel_gtt_clear_range(first_entry, num_entries);
-+	if (!unused)
-+		intel_gtt_clear_range(first_entry, num_entries);
-+	else
-+		/* Fixes DMA issues on Lenovo X201 */
-+		printk("Disable %s for Genode\n", __func__);
- }
- 
- 

repos/dde_linux/ports/dde_linux.hash

@@ -1 +1 @@
-e98972035a5cb6cb8651d9ec0f7a30de50713a69
+2b0757d0d4a6d91906a9e52fd785b08d13f24aad