modules: tf-m: update target names for arm targets

Upstream TF-M has modified the path name for ARM platforms,
so we fix the board names in the module integration code.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>

modules/trusted-firmware-m/Kconfig.tfm

@@ -12,11 +12,11 @@ config TFM_BOARD
 	default "nordic_nrf/nrf9160dk_nrf9160" if BOARD_NRF9160DK_NRF9160_NS
 	default "nordic_nrf/nrf5340dk_nrf5340_cpuapp" if BOARD_NRF5340DK_NRF5340_CPUAPP_NS
 	default "nxp/lpcxpresso55s69" if BOARD_LPCXPRESSO55S69_CPU0
-	default "mps2/an521" if BOARD_MPS2_AN521_CPU0_NS
+	default "arm/mps2/an521" if BOARD_MPS2_AN521_CPU0_NS
 	default "stm/nucleo_l552ze_q" if BOARD_NUCLEO_L552ZE_Q
 	default "stm/stm32l562e_dk" if BOARD_STM32L562E_DK
-	default "musca_b1/sse_200" if BOARD_MUSCA_B1
-	default "musca_s1" if BOARD_MUSCA_S1
+	default "arm/musca_b1/sse_200" if BOARD_MUSCA_B1
+	default "arm/musca_s1" if BOARD_MUSCA_S1
 	default "lairdconnectivity/bl5340_dvk_cpuapp" if BOARD_BL5340_DVK_CPUAPP_NS
 	help
 	  The board name used for building TFM. Building with TFM requires that