{nb,soc}/intel: Use get_current_microcode_rev() for ucode version

This patch removes all redundant read microcode version implementation
from SoC directory and refer from cpu/intel/microcode/microcode.c file.

TEST=Able to get correct microcode version.

Change-Id: Icb905b18d85f1c5b68fac6905f3c65e95bffa2da
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
---
M src/northbridge/intel/haswell/report_platform.c
M src/soc/intel/apollolake/report_platform.c
M src/soc/intel/broadwell/romstage/report_platform.c
M src/soc/intel/cannonlake/bootblock/report_platform.c
M src/soc/intel/icelake/bootblock/report_platform.c
M src/soc/intel/jasperlake/bootblock/report_platform.c
M src/soc/intel/skylake/bootblock/report_platform.c
M src/soc/intel/tigerlake/bootblock/report_platform.c
8 files changed, 17 insertions(+), 60 deletions(-)