Whitespace cleanup from David Brownell <david-b@pacbell.net>

src/flash/lpc3180_nand_controller.c

src/flash/nand.c

src/flash/nand.h

src/flash/s3c2410_nand.c

src/flash/s3c2412_nand.c

src/flash/s3c2440_nand.c

src/flash/s3c2443_nand.c

src/flash/s3c24xx_nand.c

src/flash/s3c24xx_nand.h

src/flash/stellaris.h

src/flash/stm32x.h

src/flash/str7x.h