arm64: tegra: Use correct interrupts for Tegra234 TKE

The shared interrupts 0-9 of the TKE are mapped to interrupts 0-9, but
shared interrupts 10-15 are mapped to 256-261. Correct the mapping for
the final 6 interrupts. This prevents the TKE from requesting the RTC
interrupt (along with several GTE and watchdog interrupts).

Reported-by: Shubhi Garg <shgarg@nvidia.com>
Fixes: 28d860ed ("arm64: tegra: Enable native timers on Tegra234")
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>