ARM: msm: dts: update mincpubw node with proper mapping for sxr1120 target

Override mincpubw node with proper mapping table for sxr1120 target
with proper core numbering.

Change-Id: If8711fc37a044a3a7646e36bae9137c2afbafa2b
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>