devices: add device id for Realtek RTL8188CU and RTL8188FTV

Add device ids for Realtek RTL8188CU and RTL8188FTV 802.11n 1x1 USB
Wi-Fi adapter.

Signed-off-by: Shiji Yang <yanshiji66@qq.com>

devices.txt

@@ -238,6 +238,9 @@
 # mt7615/usb.c
 0x0000 0x0000 0x0e8d 0x7663    0      0  "MediaTek" "MT7663U"
 0x0000 0x0000 0x043e 0x310c    0      0  "LG" "LGSBWAC02"
+# rtl8xxxu/rtl8xxxu_core.c
+0x0000 0x0000 0x0bda 0x8176    0      0  "Realtek" "RTL8188CU"
+0x0000 0x0000 0x0bda 0xf179    0      0  "Realtek" "RTL8188FTV"
 
 # FDT compatible strings
 # "compatible" | txpower offset | frequency offset | ...