google/gru: Change UART _Static_assert() condition to #if

_Static_assert() gets evaluated even when the code path it's in is
unreachable (e.g. inside an if (0) block). Unfortunately, Kconfigs that
depend on a disabled Kconfig are always 0, meaning that
CONFIG_CONSOLE_SERIAL_UART_ADDRESS on Gru cannot evaluate to UART2 when
CONFIG_CONSOLE_SERIAL (which it depends on) is disabled. Switch the
condition it is wrapped in to a preprocessor #if so that the
_Static_assert() is not evaluated when building without serial support.

BRANCH=None
BUG=None
TEST=Built and booted Kevin without serial

Change-Id: I391325fcc4b7d64b4866a7fce4444e2f28365b7d
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: f5e5cf0644154eca5b347ea381df3f6b28287524
Original-Change-Id: I33d51d4ef09b218c14173d39a12795f0cef6bb40
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/361581
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://review.coreboot.org/15810
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
1 file changed