mraa-gpio.c: Fix raw gpio setting
mraa-gpio.c: Fix raw gpio setting

setraw was not using mraa_gpio_init_raw so did not work

Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

stefan-andritoiu/mraa-gpio-chardev,KurtE/mraa,petreeftime/mraa,g-vidal/mraa,KurtE/mraa,Hbrinj/mraa,ncrastanaren/mraa,malikabhi05/mraa,yongli3/mraa,stefan-andritoiu/mraa,ProfFan/mraa,stefan-andritoiu/mraa-gpio-chardev,andreivasiliu2211/mraa,arunlee77/mraa,arfoll/mraa,Propanu/mraa,stefan-andritoiu/mraa,andreivasiliu2211/mraa,malikabhi05/mraa,intel-iot-devkit/mraa,alext-mkrs/mraa,yongli3/mraa,ncrastanaren/mraa,andreivasiliu2211/mraa,alext-mkrs/mraa,g-vidal/mraa,Jon-ICS/mraa,g-vidal/mraa,yongli3/mraa,petreeftime/mraa,Propanu/mraa,intel-iot-devkit/mraa,malikabhi05/mraa,Hbrinj/mraa,KurtE/mraa,arunlee77/mraa,Hbrinj/mraa,alext-mkrs/mraa,arfoll/mraa,Jon-ICS/mraa,ProfFan/mraa,jontrulson/mraa,ncrastanaren/mraa,w4ilun/mraa,andreivasiliu2211/mraa,arunlee77/mraa,malikabhi05/mraa,alext-mkrs/mraa,arunlee77/mraa,stefan-andritoiu/mraa-gpio-chardev,Propanu/mraa,stefan-andritoiu/mraa-gpio-chardev,intel-iot-devkit/mraa,jontrulson/mraa,jontrulson/mraa,ncrastanaren/mraa,sergev/mraa,arfoll/mraa,ProfFan/mraa,yongli3/mraa,spitfire88/mraa,w4ilun/mraa,ncrastanaren/mraa,Propanu/mraa,stefan-andritoiu/mraa,stefan-andritoiu/mraa,whbruce/mraa,jontrulson/mraa,whbruce/mraa,spitfire88/mraa,sergev/mraa,arfoll/mraa,petreeftime/mraa,Propanu/mraa,w4ilun/mraa,sergev/mraa,ProfFan/mraa,petreeftime/mraa,spitfire88/mraa,alext-mkrs/mraa,g-vidal/mraa,Hbrinj/mraa,whbruce/mraa,stefan-andritoiu/mraa,malikabhi05/mraa,whbruce/mraa,Jon-ICS/mraa,intel-iot-devkit/mraa,jontrulson/mraa,spitfire88/mraa,arfoll/mraa,intel-iot-devkit/mraa,yongli3/mraa,sergev/mraa,sergev/mraa,w4ilun/mraa,KurtE/mraa,g-vidal/mraa,stefan-andritoiu/mraa-gpio-chardev,KurtE/mraa