docs: pstore-blk.rst: fix typo, s/console/ftrace

The author referred to the ftrace log, but mentioned console log
instead. Fix the typo.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20230914133729.1956907-2-tudor.ambarus@linaro.org
Signed-off-by: Kees Cook <keescook@chromium.org>

Author: ambarus

Documentation/admin-guide/pstore-blk.rst

@@ -111,7 +111,7 @@ ftrace_size
 ~~~~~~~~~~~
 
 The chunk size in KB for ftrace front-end. It **MUST** be a multiple of 4.
-It's optional if you do not care about the console log.
+It's optional if you do not care about the ftrace log.
 
 Similar to oops front-end, there are multiple chunks for ftrace front-end
 depending on the count of cpu processors. Each chunk size is equal to