PCI: v3-semi: Remove unneeded break

A break is not needed if it is preceded by a return

Link: https://lore.kernel.org/r/20201019190249.7825-1-trix@redhat.com


Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>