Added rdtscl() macro from <asm/msr.h> which disappeared on RedHat 7.3
Added rdtscl() macro from <asm/msr.h> which disappeared on RedHat 7.3

adobni/log4cpp,adobni/log4cpp,halex2005/log4cpp,halex2005/log4cpp,adobni/log4cpp,ksmyth/log4cpp,iocroblab/log4cpp,ksmyth/log4cpp,orocos-toolchain/log4cpp,iocroblab/log4cpp,ksmyth/log4cpp,orocos-toolchain/log4cpp,halex2005/log4cpp,iocroblab/log4cpp