While returning virtual address for existing memory mapped region, newly
supplied offset from the physical address was not getting considered.
This was a regression present from ESP-IDF 5.1 release.
Added test case in spi_flash component that fails without this fix.
Closes https://github.com/espressif/esp-idf/issues/13929
ESP_CACHE_MSYNC_FLAG_DIR_C2M: From cache to memory
ESP_CACHE_MSYNC_FLAG_DIR_M2C: From memory to cache
By default, if no direction flag is set, it will fallback C2M direction.
For M2C direction, now this API will do an invalidation.
