Startup log: rearrange info for better readability
"x86 Linux 32-bit" -> "Linux x86 32-bit"
SystemInfo: add MIPS64 detection (for consistency)
Startup log: report OS similarly to platform ("Linux 32-bit" -> "Linux x86 32-bit")
* Add CSysInfo::GetKernelCpuFamily() function

Conflicts:
	xbmc/Application.cpp

Conflicts:
	xbmc/Application.cpp
Merge pull request #3990 from Karlson2k/startup_log_mod_01

Better readability for startup log