docs: Power-off fix texts cover every affected kernel, not just 7.2

patches/README.md

@@ -6,5 +6,5 @@ read and reviewed on their own. `lib/*.sh` reads them with `patch_file
 
 | File | Used by | What |
 |---|---|---|
-| `steamify-fremont-poweroff.c` | `lib/fremont-poweroff.sh` (Steam Machine support) | Kernel module (DKMS): clears GPIO 18's S4/S5 wake bit before power-off, so the Steam Machine stays off on kernels 7.2 and newer |
+| `steamify-fremont-poweroff.c` | `lib/fremont-poweroff.sh` (Steam Machine support) | Kernel module (DKMS): clears GPIO 18's S4/S5 wake bit before power-off, so the Steam Machine stays off with recent kernels |
 | `cros-ec-cec-single-port.patch` | `lib/cec.sh` (HDMI-CEC) | Makes Valve's Steam Machine CEC driver find amdgpu's HDMI port |

patches/steamify-fremont-poweroff.c

@@ -2,9 +2,9 @@
 /*
  * Steam Machine (Fremont): power off instead of booting up again.
  *
- * Since Linux 7.2 ("pinctrl-amd: Don't clear S4 wake bits at probe") the
- * S4/S5 wake bit the firmware leaves set on GPIO pin 18 (_SB.PCI0.GPP6)
- * stays set, and the machine starts again right after powering off.
+ * Since "pinctrl-amd: Don't clear S4 wake bits at probe" (Linux 7.2, also
+ * backported to 6.x, 7.0 and 7.1 updates) the S4/S5 wake bit the firmware
+ * leaves set on GPIO pin 18 (_SB.PCI0.GPP6) stays set, and the machine starts again right after powering off.
  * Valve's kernel clears that bit at probe on Fremont (not for upstream);
  * this does the same right before power-off, for kernels without it.
  */