staging: sm750fb: fix CamelCase function parameter
Change function parameter in header file from powerMode to mode,
now identical to c file function declaration. Issue found by checkpatch.
Signed-off-by: Arne Petersen <petersenarne@yahoo.com>
Link: https://lore.kernel.org/r/Yq2NufHtWbuXCjWE@ubuntu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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