realtek_mst_i2c_spi: don't always fail init

In some earlier refactoring the init function for this programmer was
broken such that it never succeeds, since the return value was never set
to a value other than a generic failure. Fix it to return success unless
there is a problem.

TEST=flashrom -p realtek_mst_i2c_spi:bus=n --flash-size now works
     when n is a bus that has a connected MST.

Change-Id: I0596014fc9b76b4d11de230f9f5c414c1321dff1
Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/56799
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions