[nrf fromlist] scripts: nrf_common: Move MPI to sysbuild Kconfig

Use sysbuild to build and configure SUIT Manifest Provisioning
Information.

Ref: NCSDK-30461

Upstream PR #: 81723

Signed-off-by: Tomasz Chyrowicz <[email protected]>

Author: tomchy

scripts/west_commands/runners/nrf_common.py

@@ -285,14 +285,14 @@ def program_hex(self):
             if self.build_conf.get('CONFIG_BOARD_QUALIFIERS') == self.sysbuild_conf.get(
                 'SB_CONFIG_BOARD_QUALIFIERS'
             ):
-                mpi_hex_dir = Path(os.path.join(self.cfg.build_dir, 'zephyr'))
+                mpi_hex_dir = Path(os.path.join(os.path.dirname(self.cfg.build_dir), 'zephyr'))
 
                 # Handle Manifest Provisioning Information
-                if self.build_conf.getboolean('CONFIG_SUIT_MPI_GENERATE'):
+                if self.sysbuild_conf.getboolean('SB_CONFIG_SUIT_MPI_GENERATE'):
                     app_mpi_hex_file = os.fspath(
-                        mpi_hex_dir / self.build_conf.get('CONFIG_SUIT_MPI_APP_AREA_PATH'))
+                        mpi_hex_dir / self.sysbuild_conf.get('SB_CONFIG_SUIT_MPI_APP_AREA_PATH'))
                     rad_mpi_hex_file = os.fspath(
-                        mpi_hex_dir / self.build_conf.get('CONFIG_SUIT_MPI_RAD_AREA_PATH')
+                        mpi_hex_dir / self.sysbuild_conf.get('SB_CONFIG_SUIT_MPI_RAD_AREA_PATH')
                     )
                     self.op_program(
                         app_mpi_hex_file,
@@ -313,8 +313,9 @@ def program_hex(self):
                 # If an application firmware is built, the root envelope is merged
                 # with other application manifests as well as the output HEX file.
                 if not cpuapp and self.sysbuild_conf.get('SB_CONFIG_SUIT_ENVELOPE'):
+                    storage_hex_dir = Path(os.path.join(self.cfg.build_dir, 'zephyr'))
                     app_root_envelope_hex_file = os.fspath(
-                        mpi_hex_dir / 'suit_installed_envelopes_application_merged.hex'
+                        storage_hex_dir / 'suit_installed_envelopes_application_merged.hex'
                     )
                     self.op_program(
                         app_root_envelope_hex_file,