cxl: Fix comment regarding cxl_query_cmd() return data

The code indicates that the min of n_commands and total commands
is returned. The comment incorrectly says it's the max(). Correct
comment to min().

Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20240913223216.3234173-1-dave.jiang@intel.com


Signed-off-by: Dave Jiang <dave.jiang@intel.com>