soc/intel/broadwell: Drop old forked version of SMBUS support

Switch to use the more recent version in sb/intel/common.

Change-Id: Icbd54b5671ea2a94aea5db4642698ef679540625
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38142
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/soc/intel/broadwell/Kconfig b/src/soc/intel/broadwell/Kconfig
index f01777f..20219d3 100644
--- a/src/soc/intel/broadwell/Kconfig
+++ b/src/soc/intel/broadwell/Kconfig
@@ -20,6 +20,7 @@
 	select HAVE_SMI_HANDLER
 	select SOUTHBRIDGE_INTEL_COMMON_RESET
 	select SOUTHBRIDGE_INTEL_COMMON_RTC
+	select SOUTHBRIDGE_INTEL_COMMON_SMBUS
 	select SOUTHBRIDGE_INTEL_COMMON_SPI_ICH9
 	select HAVE_USBDEBUG
 	select IOAPIC