Staging: rts5208: Capitalise preprocessor variable names

Capitalise header preprocesser variable names (and all
occurences) to remove checkpatch camelcase warnings.

Signed-off-by: Kim Bradley <kim.jamie.bradley@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>