When coreboot is pulled in as a submodule, the .git "folder" is a file,
not a folder. Use the '-e' test instead of '-d' to allow for that.
Change-Id: I0dd8866b0016f7ba099cdaf4d7db442ff22612b5
Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Reviewed-on: https://review.coreboot.org/12819
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2ab652f606