platform: nordic_nrf: Fix incorrect name for SPU interrupt handler

Fix incorrect name used for the SPU interrupt handler. In the nordic
startup files all externel interrupts uses IRQ_Handler as suffix, while
the exception handlers uses Handler as suffix.

Change-Id: I49f43be183642b8ab483f2aed1b6acd556a01df2
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
1 file changed