plugins: rts54hid fix get report index error
plugins: rts54hid fix get report index error

fixed rts54hid get report index error

Signed-off-by: Ricky Wu <e4e8f03db25d0e0b3e7a4d83c92d66315d3e9f2a@realtek.com>

fwupd/fwupd,fwupd/fwupd,hughsie/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,fwupd/fwupd,hughsie/fwupd