staging: r8188eu: merge InitLed871x and rtl8188eu_InitSwLeds

Copy InitLed871x into rtl8188eu_InitSwLeds. There's no need for two
separate functions.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211226195556.159471-5-martin@kaiser.cx


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