zephyr: scripts: use esptool version from hal requirements

Use package-managers to provide hal requirements.txt.
Update the generator script accordingly and add the actual
`requirements.txt` file.
Fix the path used to access the flash_stub.

Signed-off-by: Marek Matej <marek.matej@espressif.com>

Author: Marek Matej

zephyr/esp32c6/CMakeLists.txt

@@ -127,7 +127,7 @@ if(CONFIG_SOC_SERIES_ESP32C6)
     -T${CMAKE_CURRENT_SOURCE_DIR}/../../components/esp_rom/${CONFIG_SOC_SERIES}/ld/${CONFIG_SOC_SERIES}.rom.version.ld
     -T${CMAKE_CURRENT_SOURCE_DIR}/../../components/esp_rom/${CONFIG_SOC_SERIES}/ld/${CONFIG_SOC_SERIES}.rom.wdt.ld
     -T${CMAKE_CURRENT_SOURCE_DIR}/../../components/soc/${CONFIG_SOC_SERIES}/ld/${CONFIG_SOC_SERIES}.peripherals.ld
-    -T${CMAKE_CURRENT_SOURCE_DIR}/../../tools/esptool_py/flasher_stub/ld/rom_32c6.ld
+    -T${CMAKE_CURRENT_SOURCE_DIR}/../../tools/flasher_stub/ld/rom_32c6.ld
   )
 
   zephyr_compile_definitions(ESP_PLATFORM)

zephyr/module.yml

@@ -4,6 +4,10 @@ build:
   kconfig: zephyr/Kconfig
   settings:
     dts_root: .
+package-managers:
+  pip:
+    requirement-files:
+      - zephyr/requirements.txt
 blobs:
   - path: lib/esp32c6/libble_app.a
     sha256: fa816b02b51ae563003da5debad67ec9b80e90db9cd736bb2e0fb64224c7093b

zephyr/requirements.txt

@@ -0,0 +1 @@
+esptool>=5.0.1

zephyr/scripts/blobs/esp_genblobs.py

@@ -18,6 +18,10 @@
 
 module_yaml = """\
 name: hal_espressif
+package-managers:
+  pip:
+    requirement-files:
+      - zephyr/requirements.txt
 build:
   cmake: zephyr
   kconfig: zephyr/Kconfig