core: fix and use MAKEMODULEDEFS instead of explicit registration

core/SConscript.firmware

@@ -401,6 +401,7 @@ env.Replace(
     PYTHON='python',
     MAKEQSTRDATA='$PYTHON vendor/micropython/py/makeqstrdata.py',
     MAKEVERSIONHDR='$PYTHON vendor/micropython/py/makeversionhdr.py',
+    MAKEMODULEDEFS='$PYTHON vendor/micropython/py/makemoduledefs.py',
     MPY_TOOL='$PYTHON vendor/micropython/tools/mpy-tool.py',
     MPY_CROSS='vendor/micropython/mpy-cross/mpy-cross -O' + PYOPT
 )

core/SConscript.unix

@@ -377,6 +377,7 @@ env.Replace(
     PYTHON='python',
     MAKEQSTRDATA='$PYTHON vendor/micropython/py/makeqstrdata.py',
     MAKEVERSIONHDR='$PYTHON vendor/micropython/py/makeversionhdr.py',
+    MAKEMODULEDEFS='$PYTHON vendor/micropython/py/makemoduledefs.py',
     MPY_TOOL='$PYTHON vendor/micropython/tools/mpy-tool.py',
     MPY_CROSS='vendor/micropython/mpy-cross/mpy-cross -O' + PYOPT
 )

core/embed/extmod/modtrezorconfig/modtrezorconfig.c

@@ -402,4 +402,7 @@ const mp_obj_module_t mp_module_trezorconfig = {
     .globals = (mp_obj_dict_t *)&mp_module_trezorconfig_globals,
 };
 
+MP_REGISTER_MODULE(MP_QSTR_trezorconfig, mp_module_trezorconfig,
+                   MICROPY_PY_TREZORCONFIG);
+
 #endif  // MICROPY_PY_TREZORCONFIG

core/embed/extmod/modtrezorcrypto/modtrezorcrypto.c

@@ -110,4 +110,7 @@ const mp_obj_module_t mp_module_trezorcrypto = {
     .globals = (mp_obj_dict_t*)&mp_module_trezorcrypto_globals,
 };
 
+MP_REGISTER_MODULE(MP_QSTR_trezorcrypto, mp_module_trezorcrypto,
+                   MICROPY_PY_TREZORCRYPTO);
+
 #endif  // MICROPY_PY_TREZORCRYPTO

core/embed/extmod/modtrezorio/modtrezorio.c

@@ -93,4 +93,6 @@ const mp_obj_module_t mp_module_trezorio = {
     .globals = (mp_obj_dict_t*)&mp_module_trezorio_globals,
 };
 
+MP_REGISTER_MODULE(MP_QSTR_trezorio, mp_module_trezorio, MICROPY_PY_TREZORIO);
+
 #endif  // MICROPY_PY_TREZORIO

core/embed/extmod/modtrezorui/modtrezorui.c

@@ -40,4 +40,6 @@ const mp_obj_module_t mp_module_trezorui = {
     .globals = (mp_obj_dict_t*)&mp_module_trezorui_globals,
 };
 
+MP_REGISTER_MODULE(MP_QSTR_trezorui, mp_module_trezorui, MICROPY_PY_TREZORUI);
+
 #endif  // MICROPY_PY_TREZORUI

core/embed/extmod/modtrezorutils/modtrezorutils.c

@@ -146,4 +146,7 @@ const mp_obj_module_t mp_module_trezorutils = {
     .globals = (mp_obj_dict_t *)&mp_module_trezorutils_globals,
 };
 
+MP_REGISTER_MODULE(MP_QSTR_trezorutils, mp_module_trezorutils,
+                   MICROPY_PY_TREZORUTILS);
+
 #endif  // MICROPY_PY_TREZORUTILS

core/embed/firmware/modutime.c

@@ -45,3 +45,5 @@ const mp_obj_module_t mp_module_utime = {
     .base = {&mp_type_module},
     .globals = (mp_obj_dict_t*)&time_module_globals,
 };
+
+MP_REGISTER_MODULE(MP_QSTR_utime, mp_module_utime, MICROPY_PY_UTIME_MP_HAL);

core/embed/firmware/mpconfigport.h

@@ -163,22 +163,6 @@
 // extra built in names to add to the global namespace
 #define MICROPY_PORT_BUILTINS
 
-// extra built in modules to add to the list of known ones
-extern const struct _mp_obj_module_t mp_module_utime;
-extern const struct _mp_obj_module_t mp_module_trezorconfig;
-extern const struct _mp_obj_module_t mp_module_trezorcrypto;
-extern const struct _mp_obj_module_t mp_module_trezorio;
-extern const struct _mp_obj_module_t mp_module_trezorui;
-extern const struct _mp_obj_module_t mp_module_trezorutils;
-
-#define MICROPY_PORT_BUILTIN_MODULES \
-    { MP_ROM_QSTR(MP_QSTR_utime), MP_ROM_PTR(&mp_module_utime) }, \
-    { MP_ROM_QSTR(MP_QSTR_trezorconfig), MP_ROM_PTR(&mp_module_trezorconfig) }, \
-    { MP_ROM_QSTR(MP_QSTR_trezorcrypto), MP_ROM_PTR(&mp_module_trezorcrypto) }, \
-    { MP_ROM_QSTR(MP_QSTR_trezorio), MP_ROM_PTR(&mp_module_trezorio) }, \
-    { MP_ROM_QSTR(MP_QSTR_trezorui), MP_ROM_PTR(&mp_module_trezorui) }, \
-    { MP_ROM_QSTR(MP_QSTR_trezorutils), MP_ROM_PTR(&mp_module_trezorutils) },
-
 #define MP_STATE_PORT MP_STATE_VM