chromium: fix patch to unbreak build.

srcpkgs/chromium/patches/0001-Demand-for-newer-POSIX-macro.patch

@@ -20,8 +20,8 @@ Reviewed-by: Adam Langley <agl@google.com>
 
 diff --git a/crypto/bio/socket_helper.c b/crypto/bio/socket_helper.c
 index b1cdd1a..481278f 100644
---- crypto/bio/socket_helper.c
-+++ crypto/bio/socket_helper.c
+--- third_party/boringssl/src/crypto/bio/socket_helper.c
++++ third_party/boringssl/src/crypto/bio/socket_helper.c
 @@ -12,7 +12,7 @@
   * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
   * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */