platform: nordic_nrf: Fix timer0 IRQ handler for nrf9160

Fix timer0 IRQ handler not being enabled properly due to name mismatch
between startup file and tfm_interrupts.c for nrf9160 platform.

Regression from: 6da052c649cfc0e52ca79063d1c1a4fe4370fb0b

Change-Id: I76fda7be3f105456d8aa154887936c9d15909341
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
1 file changed