buildgcc: Always set HOSTCFLAGS

Always set HOSTCFLAGS to the flags GMP was built with, defaulting to
"-Os" if it isn't built yet. Previously, if GMP was already built or
not even in the list of packages to be built, this was silently skipped
and other packages were built with empty HOSTCFLAGS.

Change-Id: I29b2ea75283410a6cea60dc1c92b87573aebfb34
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/13550
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions