mraa.c: Fix current_plat being invalid but not NULL
mraa.c: Fix current_plat being invalid but not NULL

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

spitfire88/mraa,Propanu/mraa,Kiritoalex/mraa,smileboywtu/mraa,KurtE/mraa,intel-iot-devkit/mraa,ncrastanaren/mraa,jontrulson/mraa,malikabhi05/mraa,petreeftime/mraa,arunlee77/mraa,alext-mkrs/mraa,malikabhi05/mraa,spitfire88/mraa,Jon-ICS/mraa,arfoll/mraa,neuroidss/mraa,w4ilun/mraa,KurtE/mraa,Propanu/mraa,KurtE/mraa,w4ilun/mraa,whbruce/mraa,g-vidal/mraa,sergev/mraa,matt-auld/mraa,tripzero/mraa,andreivasiliu2211/mraa,anonymouse64/mraa,neuroidss/mraa,arfoll/mraa,arfoll/mraa,malikabhi05/mraa,matt-auld/mraa,jontrulson/mraa,alext-mkrs/mraa,whbruce/mraa,stefan-andritoiu/mraa,ncrastanaren/mraa,yongli3/mraa,yoyojacky/mraa,ncrastanaren/mraa,intel-iot-devkit/mraa,sergev/mraa,anonymouse64/mraa,matt-auld/mraa,stefan-andritoiu/mraa-gpio-chardev,alex1818/mraa,stefan-andritoiu/mraa-gpio-chardev,spitfire88/mraa,w4ilun/mraa,yoyojacky/mraa,alex1818/mraa,yongli3/mraa,yongli3/mraa,alext-mkrs/mraa,allela-roy/mraa,jontrulson/mraa,Kiritoalex/mraa,malikabhi05/mraa,Propanu/mraa,stefan-andritoiu/mraa-gpio-chardev,petreeftime/mraa,stefan-andritoiu/mraa,allela-roy/mraa,Hbrinj/mraa,ProfFan/mraa,spitfire88/mraa,arfoll/mraa,g-vidal/mraa,ncrastanaren/mraa,intel-iot-devkit/mraa,neuroidss/mraa,whbruce/mraa,sergev/mraa,KurtE/mraa,Hbrinj/mraa,petreeftime/mraa,yoyojacky/mraa,alex1818/mraa,arfoll/mraa,mircea/mraa,andreivasiliu2211/mraa,sergev/mraa,stefan-andritoiu/mraa-gpio-chardev,yongli3/mraa,stefan-andritoiu/mraa,w4ilun/mraa,nioinnovation/mraa,sergev/mraa,jontrulson/mraa,intel-iot-devkit/mraa,smileboywtu/mraa,mircea/mraa,ProfFan/mraa,stefan-andritoiu/mraa,Propanu/mraa,Hbrinj/mraa,g-vidal/mraa,Pillar1989/mraa,smileboywtu/mraa,nioinnovation/mraa,anonymouse64/mraa,Kiritoalex/mraa,KurtE/mraa,jontrulson/mraa,damcclos/mraa,alext-mkrs/mraa,whbruce/mraa,Jon-ICS/mraa,allela-roy/mraa,yongli3/mraa,stefan-andritoiu/mraa-gpio-chardev,tripzero/mraa,Propanu/mraa,arunlee77/mraa,Pillar1989/mraa,g-vidal/mraa,andreivasiliu2211/mraa,intel-iot-devkit/mraa,Pillar1989/mraa,tripzero/mraa,Jon-ICS/mraa,petreeftime/mraa,alext-mkrs/mraa,ProfFan/mraa,mircea/mraa,arunlee77/mraa,Hbrinj/mraa,malikabhi05/mraa,damcclos/mraa,damcclos/mraa,nioinnovation/mraa,andreivasiliu2211/mraa,ncrastanaren/mraa,stefan-andritoiu/mraa,g-vidal/mraa,arunlee77/mraa,ProfFan/mraa