Update 1.19.1→1.28.0: patches

[mmilata]

PR contains commits on top of upstream's v1.28.0 @ e0e9fbb tag. No point in merging, set as the default branch instead of trezor-v1.19.1.

What happened to 1.19.1 patches (branch trezor-v1.19.1):

• 4051522 modutimeq: add discard method
  • upstream dropped the module, will be bundled in trezor-firmware (PR XXX), commit dropped
• dedf21d gc: add optional allocation counter (Add optional allocation counter #3)
  • cherry-picked without changes
• 94c847b prof: trade leaky memory for accurate alloc info
  • base code changed significantly, low prio devel feature, TBD
• 935dfd3 py/runtime: systemview debug print redirection
  • cherry-picked without changes
• 0b3174e trezor: forward-portable script to drop unwanted submodules
  • cherry-picked, extended with more submodules
• e1627d4 chore(trezor): drop unwanted submodules
  • re-generated by tool from previous commit
• 2e06e07 tools/mpy-tool.py: Initialize line_info_top.
  • cherry-picked without changes
• a973bbc uzlib(trezor): partially optimize decompression for speed
  • cherry-picked
• e63e8b8 uzlib(trezor): fix compilation with clang
  • squashed into previous commit
• 27acb6c uzlib(trezor): add user context for source callback
  • cherry-picked without changes
• 0dff05a py/stackctrl: Add gcc pragmas to ignore dangling-pointer warning.
  • already upstream
• d2d9706 mpy-cross/main: Fix return type of mp_import_stat.
  • already upstream
• 3943026 mpprint: prefix pointer with 0x
  • cherry-picked, needed fixing
• e4d81eb gc: support user-defined OOM callback
  • cherry-picked without changes
• ecfabf9 py/runtime: make __main__ preallocate to a configurable size
  • cherry-picked without changes
• 6bdefd1 tools/mpy-tool.py: Allow skipping files from freezing
  • dropped
• 52747e8 py/misc: zero stack memory allocated by VSTR_FIXED
  • cherry-picked without changes
• 8a81439 Revert "tools/mpy-tool.py: Allow skipping files from freezing"
  • dropped
• f382c78 bare-arm/lib: Add minimal strncmp implementation.
  • already upstream
• 6b80065 py/qstr: Add support for sorted qstr pools.
  • already upstream
• 2d09fb5 shared/libc/string0: Don't deref args for n==0 case.
  • already upstream
• 1f08952 py/nlr: Add "memory" to asm clobbers list in nlr_jump.
  • already upstream
• 8b7237b Workaround broken GCC va_args on arm64-darwin
  • obsoleted by upstream 519cba4
• b989de6 py: allow presizing dicts
  • cherry-picked without changes
• 5e38f62 py/map: use MP_ERROR_TEXT for mp_map_presize error message
  • squashed into previous commit
• c718974 py/objstr: export str_modulo_format for efficient logging from Rust
  • cherry-picked without changes
• 73ccede py/obj: allow disabling traceback allocation
  • cherry-picked without changes
• 59876fc py/emitinlinethumb: Refactor string literal as array initializer.
  • already upstream
• c2a5481 py/emitinlinextensa: Simplify register name lookup.
  • already upstream
• e8d89a0 py: Allow mpy-cross to exclude source lines.
  • cherry-picked without changes, should be upstream in the next micropython release
• 1f700e1 py/builtinimport: Fix crash handling "weak link" module names.
  • already upstream
• 1f035b4 py/builtinimport: Allow overriding of mp_builtin___import__.
  • already upstream
• fbf9558 py/builtinimport: Handle empty sys.path correctly.
  • already upstream
• f5ec033 py/builtinimport: Optimise sub-package loading.
  • already upstream