soc/intel/skylake: Clean up bootblock/report_platform.c

This patch ensures that all required information for
pch/mch/igd deviceid and revision available in single
stage and make use of local references.

TEST=Build and boot soraka/eve

Change-Id: I6f7f219536831210750a486ee3b3308d6f285451
Signed-off-by: Subrata Banik <>
Reviewed-by: Rizwan Qureshi <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Furquan Shaikh <>
Reviewed-by: Aaron Durbin <>
4 files changed