fixed type error in UART template causing errorous calculation of ubbr if trying to use high baud
fixed type error in UART template causing errorous calculation of ubbr if trying to use high baud

git-svn-id: 3fbe322b1eb3181da5517b419eac54fb36123d4d@640 ac1e7a95-1e17-0410-ad1e-f2b06e490645

steup/AVR-HaLib,steup/AVR-HaLib,steup/AVR-HaLib