soc/intel/common: Add error print in common i2c

Print error message when using common i2c without default clock defined.

TEST=Do not define default clock in Kconfig, compile will stop for
assertion.

Change-Id: I803f97698b3928e6b64df0010e71a6ded1400f87
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22405
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

0 files changed, 0 insertions, 0 deletions