Update for cam_cesm2_1_rel_r58

doc/ChangeLog

@@ -1,5 +1,54 @@
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+Tag name: cam_cesm2_1_rel_r58
+Originator(s): fischer
+Date: 30 May 2023 
+One-line Summary: Add use case for BSSP585smbb
+Github PR URL: https://github.com/ESCOMP/CAM/pull/822
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+Addresses Issue #821 (Add use_case for BSSP585smbb.)
+
+Describe any changes made to build system:
+
+Describe any changes made to the namelist:
+Add ssp585BB_cam6 use case.
+
+List any changes to the defaults for the boundary datasets:
+
+Describe any substantial timing or memory changes:
+
+Code reviewed by: cacraig
+
+List all files eliminated:
+
+List all files added and what they do:
+- bld/namelist_files/use_cases/ssp585BB_cam6.xml
+  Namelist variable settings needed for BSSP585smbb compset.
+
+List all existing files that have been modified, and describe the changes:
+- cime_config/config_component.xml
+  Add reference to ssp585BB_cam6 use case.
+
+If there were any failures reported from running test_driver.sh on any test
+platform, and checkin with these failures has been OK'd by the gatekeeper,
+then copy the lines from the td.*.status files for the failed tests to the
+appropriate machine below.  All failed tests must be justified.
+
+cheyenne/intel:
+Ran ERS.f09_g17.BSSP585smbb.cheyenne_intel.allactive-defaultio, and all passed.
+
+cheyenne/intel/aux_cam:
+
+izumi/nag:
+
+izumi/pgi:
+
+Summarize any changes to answers: No answer changes
+
+===============================================================
+===============================================================
+
 Tag name: cam_cesm2_1_rel_57
 Originator(s): fvitt
 Date: 5 Jan 2023