Remove TABs
Fix indentation
Fix Multi-line comments
Fix Comments to the Right of Statements.
Fix nuttx coding style
Fix Comments to the Right of Statements.
includes following parts:
add support of sparc in arch/Kconfig
add support of sparc in boards/Kconfig
add sparc dir in arch, add sparc dir in boards
add support of sparc in libs/libc/machine
modify all the coding style problem about saprc