memory: tegra: Remove superfluous error messages around platform_get_irq()

The platform_get_irq() prints error message telling that interrupt is
missing, hence there is no need to duplicated that message in the drivers.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201104164923.21238-31-digetx@gmail.com


Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>