staging: r8188eu: summarize two if statements

Summarize two if statements in rtw_pwr_wakeup and place the constants
on the right side of the comparison.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413193654.258507-5-martin@kaiser.cx


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