slimbus: qcom-ngd-ctrl: reinit the reconf completion flag

Reinitialize the reconf completion flag when ngd registers are
not retainied or when enumeration is lost for ngd.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20221118065246.6835-10-srinivas.kandagatla@linaro.org


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