gitignore: fix overzealous exclusion
This was excluding any subdirectory anywhere in the tree named build*,
rather than just at the root - thus anything in
meta/recipes-devtools/build-compare had to be forcibly added. Change the
line so that it only operates at the root of the repo.
(From OE-Core rev: 3a60e5dba0ea914b1bd7a2073c1977e1d8529541)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Paul Eggleton