After recent changes on nuttx-apps (not limited to, but related
to nuttx-apps#2738, for instance), the stack usage for the NSH
task increased, causing stack overflows under specific situations
(when running `ps` command, for instance). This commit increases
the init task stack size to avoid it. Please note that, even before
these changes, the stack usage of the NSH task was around 90% and,
then, increasing the stack size of it was recommended.
As suggested in PR:12530, changed the default names of ESP32S3WROOM chips to ESP32S3WROOM1N4,
ESP32S3WROOM2N16R8, ESP32S3WROOM2N32R8, ESP32S3MINI1N8.
Also regenerated all the defconfigs for board configurations.
Added a custom ESP32S3 module for custom flash configurations.
Declared ESP32S3_PSRAM_8M variable with prompt
