exfat_super.c: fix misplaced #ifdef CONFIG_EXFAT_KERNEL_DEBUG

Signed-off-by: Paul Reioux <reioux@gmail.com>
Merge pull request #40 from faux123/master

exfat_super.c: fix misplaced #ifdef CONFIG_EXFAT_KERNEL_DEBUG
Merge pull request #1 from dorimanx/master

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