When the console-record buffer overflows, show both the current buffer
size and the size needed. This helps the user know what value to set
for CONFIG_CONSOLE_RECORD_OUT_SIZE.
Add a console_out_ovf field to global_data to track the number of bytes
that could not be written due to overflow.
Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
c17d68b0fb