Modified for RaspberryPI2 kernel 4.1.7-v7+ armv7l GNU/Linux

• modified: os/linux/rt_linux.c
• fix file operations

Modified usb wifi driver for TP-Link TL-WDN5200/Archer T2U on Linux.

• modified: common/rtusb_dev_id.c
• add product id for TL-WDN5200/Archer T2U
• modified: include/os/rt_linux.h
• modified: os/linux/rt_linux.c
• fix compile error from struct OS_FS_INFO
• fix problem on 64bit
• modified: os/linux/config.mk
• change default setting for Ubuntu

kernel headers 4.1.7-v7+ armv7l GNU/Linux

http://www.niksula.hut.fi/~mhiienka/Rpi/linux-headers-rpi/linux-headers-4.1.7-v7%2B_4.1.7-v7%2B-2_armhf.deb

$ make
$ make install
$ cp RT2870STA.dat /etc/Wireless/RT2870STA/RT2870STA.dat
$ reboot