drm: Convert open-coded yes/no strings to yesno()

linux/string_helpers.h provides a helper to return "yes"/"no" strings.
Replace the open coded versions with str_yes_no(). The places were
identified with the following semantic patch:

	@@
	expression b;
	@@

	- b ? "yes" : "no"
	+ str_yes_no(b)

Then the includes were added, so we include-what-we-use, and parenthesis
adjusted in drivers/gpu/drm/v3d/v3d_debugfs.c. After the conversion we
still see the same binary sizes:

   text    data     bss     dec     hex filename
  51149    3295     212   54656    d580 virtio/virtio-gpu.ko.old
  51149    3295     212   54656    d580 virtio/virtio-gpu.ko
1441491   60340     800 1502631  16eda7 radeon/radeon.ko.old
1441491   60340     800 1502631  16eda7 radeon/radeon.ko
6125369  328538   34000 6487907  62ff63 amd/amdgpu/amdgpu.ko.old
6125369  328538   34000 6487907  62ff63 amd/amdgpu/amdgpu.ko
 411986   10490    6176  428652   68a6c drm.ko.old
 411986   10490    6176  428652   68a6c drm.ko
  98129    1636     264  100...