kernel/rv1106: M5 AIC8800 wifi/BT port — build-verified, capture recipe

Driver built into self-built 6.18 (=y): zImage 12.7MB + rv1106-warden.dtb
build clean; System.map confirms aicbsp_sdio_driver, aicwf_sdio_driver,
rwnx_cfg80211_ops linked with correct bsp->fdrv->btlpm initcall order (host
nm/System.map — cross-nm/ar mis-list these, verify with System.map).

Recipe captured (driver .c is vendor GPL source in the SDK, not duplicated):
- kbuild/ — from-scratch in-tree Kconfig + Makefiles (bsp->fdrv->btlpm link
  order; tristate->default y; AIC_FW_PATH as a real Kconfig string symbol).
- wifi-dt-block.dtsi — sdio_pwrseq (mmc-pwrseq-simple, reset gpio1 PA2) +
  &sdmmc (mmc@ffaa0000, supports-sdio, cap-sdio-irq, non-removable).
- PORT-PROGRESS.md — full file->change log: ~30 timer/netdev renames, 7
  cfg80211_ops signature deltas, link_id args, wakeup_source API rewrite,
  49 bsp/fdrv symbol collisions renamed aicbsp_priv_*, rwnx_mesh restore.

Firmware present on both oem_a+oem_b (/oem/usr/ko/aic8800dc_fw); on-hardware
wlan0 verify next.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf

kernel/rv1106-enablement/wifi/wifi-dt-block.dtsi

@@ -0,0 +1,40 @@
+	/* --- M5: AIC8800DC wifi/BT power sequencing --- */
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		pinctrl-names = "default";
+		reset-gpios = <&gpio1 RK_PA2 GPIO_ACTIVE_LOW>;
+	};
+};
+
+/* --- console --- */
+&uart2 {
+	status = "okay";
+};
+
+/* --- eMMC rootfs (M3) --- */
+&emmc {
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	mmc-hs200-1_8v;
+	non-removable;
+	status = "okay";
+};
+
+/* --- M5: AIC8800DC wifi/BT SDIO (on &sdmmc, mmc@ffaa0000 — NOT &sdio) --- */
+&sdmmc {
+	max-frequency = <50000000>;
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	keep-power-in-suspend;
+	non-removable;
+	rockchip,default-sample-phase = <90>;
+	supports-sdio;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_bus4 &sdmmc0_det>;
+	status = "okay";
+};
+
+/* --- batch 1: mainline peripherals (wire DT + config) --- */
+&uart1 {