[nrf fromtree] tests: kernel: interrupt: Add ISR offset definitions for nrf9280

- Correct test by adding ISR offset definitions for nrf9280 ppr.

Signed-off-by: Aymen LAOUINI <[email protected]>
(cherry picked from commit 8b4a29f)

Author: ayla-nordicsemi

tests/kernel/interrupt/src/nested_irq.c

@@ -66,6 +66,12 @@
 #define IRQ0_LINE	14
 #define IRQ1_LINE	15
 
+#define IRQ0_PRIO	1
+#define IRQ1_PRIO	2
+#elif defined(CONFIG_SOC_NRF9280_CPUPPR)
+#define IRQ0_LINE	14
+#define IRQ1_LINE	15
+
 #define IRQ0_PRIO	1
 #define IRQ1_PRIO	2
 #else