meta-romulus: Fix ipmi configs

The ipmi configs were using .bbappends to override the default ones.
There was a change in OpenBMC about overriding variable assignments,
that causes the .bbappends not working anymore due to they are native.

This commit fixes the issue, by adding romulus specific configs to
replace the default ones.

Tested: Verify the ipmi sensor, fru are correct on Romulus.

Change-Id: Ifa8cf804697d64860a25f7563b840b73fc481c90
Signed-off-by: Lei YU <mine260309@gmail.com>
10 files changed