bonnie++: Update to 1.98

This version contains NVME fixes.

Edited the patches to modify the package Makefile directly so as to reduce
hacks in the OpenWrt Makefile.

Added LTO support to lower filesize by ~4KB.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

utils/bonnie++/patches/002-add-verbose-error-messages.patch

@@ -1,6 +1,6 @@
 --- a/bon_file.cpp
 +++ b/bon_file.cpp
-@@ -464,25 +464,37 @@ int COpenTest::delete_sequential(BonTime
+@@ -469,25 +469,37 @@ int COpenTest::delete_sequential(BonTime
      }
      if(m_number_directories != 1)
      {