Staging: rtl8188eu: core: rtw_pwrctrl: fixed a coding style issue

Fixed a checkpatch.pl warning: the constant should be in the right side
of the comparison.

Signed-off-by: Carlos Guerrero Álvarez <carlosteniswarrior@gmail.com>
Link: https://lore.kernel.org/r/20200423183546.123612-1-carlosteniswarrior@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>