git-2.eclass: Use BDEPEND if available

TEST=None
BUG=chromium:1011992

Change-Id: Ia2580c5b48677def61f34bc2a913e38acc534b47
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/1845661
Tested-by: Chris McDonald <cjmcdonald@chromium.org>
Auto-Submit: Chris McDonald <cjmcdonald@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Chris McDonald <cjmcdonald@chromium.org>
diff --git a/eclass/git-2.eclass b/eclass/git-2.eclass
index fdc2f18..a099c08 100644
--- a/eclass/git-2.eclass
+++ b/eclass/git-2.eclass
@@ -14,7 +14,11 @@
 # This eclass support all EAPIs.
 EXPORT_FUNCTIONS src_unpack
 
-DEPEND="dev-vcs/git"
+if [[ ${EAPI:-0} != [0123456] ]]; then
+	BDEPEND="dev-vcs/git"
+else
+	DEPEND="dev-vcs/git"
+fi
 
 # @ECLASS-VARIABLE: EGIT_SOURCEDIR
 # @DESCRIPTION: