[nrf fromtree] soc: nordic: Extend address validation for Haltium platform

VPR addresses are platform-dependent, so let's use a common symbol -
CONFIG_NRF_PLATFORM_HALTIUM - to cover both nRF54H and nRF92 series.

Signed-off-by: Grzegorz Swiderski <[email protected]>
(cherry picked from commit 26c99a6)

Author: 57300

soc/nordic/validate_base_addresses.c

@@ -335,7 +335,7 @@ CHECK_DT_REG(vmc, NRF_VMC);
 CHECK_DT_REG(cpuflpr_clic, NRF_FLPR_VPRCLIC);
 #if defined(CONFIG_SOC_NRF54L15)
 CHECK_DT_REG(cpuflpr_vpr, NRF_VPR00);
-#elif defined(CONFIG_SOC_NRF54H20)
+#elif defined(CONFIG_NRF_PLATFORM_HALTIUM)
 CHECK_DT_REG(cpuflpr_vpr, NRF_VPR121);
 CHECK_DT_REG(cpuppr_vpr, NRF_VPR130);
 #endif