memory: tegra20-emc: Remove IRQ number from error message

Remove IRQ number from error message since it doesn't add any useful
information, especially because this number is virtual.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201111011456.7875-6-digetx@gmail.com


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