galileorevh.md: Add instructions for using uart1 on gen2
galileorevh.md: Add instructions for using uart1 on gen2

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

yongli3/mraa,sergev/mraa,jontrulson/mraa,stefan-andritoiu/mraa-gpio-chardev,KurtE/mraa,alext-mkrs/mraa,Hbrinj/mraa,SyrianSpock/mraa,neuberfran/mraa,KurtE/mraa,matt-auld/mraa,Hbrinj/mraa,Meirtz/mraa,arfoll/mraa,Propanu/mraa,Hbrinj/mraa,STANAPO/mraa,whbruce/mraa,ncrastanaren/mraa,mircea/mraa,yongli3/mraa,w4ilun/mraa,Pillar1989/mraa,petreeftime/mraa,g-vidal/mraa,mircea/mraa,stefan-andritoiu/mraa,sergev/mraa,damcclos/mraa,stefan-andritoiu/mraa-gpio-chardev,allela-roy/mraa,KurtE/mraa,Propanu/mraa,malikabhi05/mraa,malikabhi05/mraa,andreivasiliu2211/mraa,spitfire88/mraa,arfoll/mraa,ncrastanaren/mraa,STANAPO/mraa,allela-roy/mraa,ProfFan/mraa,Propanu/mraa,SyrianSpock/mraa,neuberfran/mraa,sundw2014/mraa,ncrastanaren/mraa,stefan-andritoiu/mraa,Jon-ICS/mraa,anonymouse64/mraa,w4ilun/mraa,matt-auld/mraa,intel-iot-devkit/mraa,yongli3/mraa,yongli3/mraa,Kiritoalex/mraa,Hbrinj/mraa,w4ilun/mraa,Meirtz/mraa,jontrulson/mraa,anonymouse64/mraa,stefan-andritoiu/mraa,g-vidal/mraa,petreeftime/mraa,mircea/mraa,alext-mkrs/mraa,Propanu/mraa,petreeftime/mraa,damcclos/mraa,Pillar1989/mraa,whbruce/mraa,intel-iot-devkit/mraa,whbruce/mraa,ProfFan/mraa,malikabhi05/mraa,ProfFan/mraa,alex1818/mraa,intel-iot-devkit/mraa,smileboywtu/mraa,anonymouse64/mraa,ncrastanaren/mraa,sergev/mraa,arunlee77/mraa,intel-iot-devkit/mraa,sergev/mraa,Kiritoalex/mraa,stefan-andritoiu/mraa-gpio-chardev,Meirtz/mraa,Jon-ICS/mraa,arunlee77/mraa,spitfire88/mraa,spitfire88/mraa,KurtE/mraa,spitfire88/mraa,alext-mkrs/mraa,sundw2014/mraa,yongli3/mraa,SyrianSpock/mraa,stefan-andritoiu/mraa,intel-iot-devkit/mraa,jontrulson/mraa,tripzero/mraa,g-vidal/mraa,arunlee77/mraa,jontrulson/mraa,andreivasiliu2211/mraa,g-vidal/mraa,ncrastanaren/mraa,nioinnovation/mraa,neuroidss/mraa,matt-auld/mraa,neuroidss/mraa,smileboywtu/mraa,tripzero/mraa,allela-roy/mraa,petreeftime/mraa,ProfFan/mraa,stefan-andritoiu/mraa-gpio-chardev,Propanu/mraa,neuberfran/mraa,Jon-ICS/mraa,nioinnovation/mraa,stefan-andritoiu/mraa-gpio-chardev,neuroidss/mraa,alext-mkrs/mraa,KurtE/mraa,w4ilun/mraa,neuberfran/mraa,yoyojacky/mraa,sergev/mraa,andreivasiliu2211/mraa,alex1818/mraa,jontrulson/mraa,nioinnovation/mraa,stefan-andritoiu/mraa,Pillar1989/mraa,sundw2014/mraa,andreivasiliu2211/mraa,tripzero/mraa,sundw2014/mraa,yoyojacky/mraa,arfoll/mraa,zBMNForks/mraa,alext-mkrs/mraa,whbruce/mraa,sundw2014/mraa,Kiritoalex/mraa,malikabhi05/mraa,smileboywtu/mraa,arfoll/mraa,alex1818/mraa,g-vidal/mraa,zBMNForks/mraa,STANAPO/mraa,damcclos/mraa,zBMNForks/mraa,yoyojacky/mraa,neuberfran/mraa,arunlee77/mraa,malikabhi05/mraa,arfoll/mraa