Assert causes a crash when using Grayscale at 96x96 res with PSRAM on ESP32-S3

[samw3]

We get a crash caused by a failing assert when we use the following config. In particular we see the crash when using Grayscale and 96x96 resolution. The platform is ESP32-S3 using PSRAM. We traced it to cam_hal.c attempting to create a queue of size 0. This PR has a change where we make sure the queue size is at least 1. This fixes our case, but maybe there's a more elegant or robust way of fixing it.

  config.ledc_channel  = LEDC_CHANNEL_0;
  config.ledc_timer    = LEDC_TIMER_0;
  config.pin_d0        = CAMERA_PIN_D0;
  config.pin_d1        = CAMERA_PIN_D1;
  config.pin_d2        = CAMERA_PIN_D2;
  config.pin_d3        = CAMERA_PIN_D3;
  config.pin_d4        = CAMERA_PIN_D4;
  config.pin_d5        = CAMERA_PIN_D5;
  config.pin_d6        = CAMERA_PIN_D6;
  config.pin_d7        = CAMERA_PIN_D7;
  config.pin_xclk      = CAMERA_PIN_XCLK;
  config.pin_pclk      = CAMERA_PIN_PCLK;
  config.pin_vsync     = CAMERA_PIN_VSYNC;
  config.pin_href      = CAMERA_PIN_HREF;
  config.pin_sccb_sda  = -1; // CAMERA_PIN_SIOD;
  config.pin_sccb_scl  = -1; // CAMERA_PIN_SIOC;
  config.sccb_i2c_port = 0;
  config.pin_pwdn      = CAMERA_PIN_PWDN;
  config.pin_reset     = CAMERA_PIN_RESET;
  config.xclk_freq_hz  = XCLK_FREQ_HZ;
  config.pixel_format  = PIXFORMAT_GRAYSCALE;
  config.frame_size    = FRAMESIZE_96X96;
  config.jpeg_quality  = 12;
  config.fb_count      = 2;
  config.fb_location   = CAMERA_FB_IN_PSRAM;
  config.grab_mode     = CAMERA_GRAB_LATEST;

[github-actions]

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[samw3]

Fixed and merged in the suggested PR.