control:p10bmc:rainier-4u/1s4u - Comment repurpose of memory temps

To have different t-control points for the 2U and 4U sized dimms, the
external memory buffer/dram temp sensor type will be repurposed to
report the dram temperatures of 4U DDIMMs. Additionally, the external
memory buffer temp sensor type will be repurposed to report the pmic
temperatures of 4U DDIMMs.

Change-Id: I5b05085acb51cfdf8d1809cc11e3b4498844de0b
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
2 files changed