feat: update to SDK v5.0 with comprehensive kernel and device support

Major updates:
- Add Linux kernel 6.12-6.19 compatibility support
- Add Linux 6.16 timer_container_of and wakelock API support
- Add Debian 6.1.0-26 backport support
- Fix Bluetooth firmware upload for chip_mcu_id == 1 (cache_mem_addr)
- Add USB device ID 368b:8d81 support
- Add AIC8800DW device support
- Add TP-Link Archer TX1U Nano support (USB_VENDOR_ID_TENDA_V2:0x0110)
- Add TENDA series device support (U2, U11, U11 PRO)
- Add AIC8800FC_CUS4/5/6 series support
- Add AIC8800M80_CUS7/8 series support
- Add UGREEN AIC8800D80 adapter support
- Fix CONFIG_USB_BT interface number check (allow 1 or 3 interfaces)
- Update firmware files for all chip variants

Device support:
- AIC8800D80/D81/DC/DW series
- AIC8800D80X2/D81X2/D89X2 series
- AIC8800D80N/D80LN/D80WN/DLN/DWN series
- TENDA U2/U11/U11 PRO/TX1U Nano adapters
- Multiple OEM variants (FC_CUS1-6, M80_CUS1-8)

Kernel compatibility:
- Linux 3.10 - 6.19+
- Debian 6.1.0-26 with backported APIs
- Ubuntu and other distributions

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

drivers/aic8800/aic8800_fdrv/aic_vendor.h

@@ -2,6 +2,7 @@
 #define _AIC_VENDOR_H
 
 #include <linux/types.h>
+#include "rwnx_defs.h"
 
 #define GOOGLE_OUI     0x001A11
 #define BRCM_OUI       0x001018
@@ -342,5 +343,10 @@ typedef struct wl_mkeep_alive_pkt {
 	u8  data[1];
 } wl_mkeep_alive_pkt_t;
 
+int aic_dev_start_mkeep_alive(struct rwnx_hw *rwnx_hw, struct rwnx_vif *rwnx_vif,
+			u8 mkeep_alive_id, u8 *ip_pkt, u16 ip_pkt_len, u8 *src_mac, u8 *dst_mac, u32 period_msec);
+int aic_dev_stop_mkeep_alive(struct rwnx_hw *rwnx_hw, struct rwnx_vif *rwnx_vif, u8 mkeep_alive_id);
+int aicwf_vendor_init(struct wiphy *wiphy);
+
 #endif /* _AIC_VENDOR_H */