buildgcc: Use $(CURDIR) instead of $(PWD)

coreboot's top level Makefile does the same, so let's stay consistent.

Change-Id: I9e995f3ecadd05d6fbfda64b45dee3a9900d9189
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/13869
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed