Update palmetto/habanero/firestone config flags.
-Set BMC_AST2400 in config files to enable serial console
and to enable SIO boot config functions
RTC:118752
diff --git a/openpower/configs/hostboot/habanero.config b/openpower/configs/hostboot/habanero.config
index 90e5735..ff2c449 100755
--- a/openpower/configs/hostboot/habanero.config
+++ b/openpower/configs/hostboot/habanero.config
@@ -34,7 +34,7 @@
# turn on console output
set CONSOLE
-set CONSOLE_AST2400
+set BMC_AST2400
# Enable Kingston dimm voltage workaround
set KINGSTON_1_35_VOLT