branching improvements

Fall back to git_remote() if git_repo_remote() (aka git_remote_fp) fails.

Fix failure to pass review_method to update_gitreview().

Signed-off-by: Scott Little <scott.little@windriver.com>
Change-Id: If1f63529160723a5065de3866b9679da312bcb94

build-tools/branching/create_branches_and_tags.sh

@@ -418,7 +418,7 @@ for subgit in $SUBGITS; do
         echo "Tag '$tag' already exists in ${subgit}"
     fi
 
-    update_gitreview ${subgit} || exit 1
+    update_gitreview ${subgit} ${review_method} || exit 1
     ) || exit 1
 done
 ) || exit 1

build-tools/git-utils.sh

@@ -488,7 +488,10 @@ git_remote_branch () {
     # Before we can select a remote branch, we need to know which remote.
     remote=$($git_remote_fp)
     if [ $? -ne 0 ] || [ "$remote" == "" ]; then
-        return 1
+        remote=$(git_remote)
+        if [ $? -ne 0 ] || [ "$remote" == "" ]; then
+            return 1
+        fi
     fi
 
     # Find 'nearest' remote branch that we detached from and/or added commits to