tinyxml2: fix build order
tinyxml2: fix build order

objmgr requires tinyxml2, so build it first.

Tested-by: verified phosphor-pid-control built

Change-Id: Ic5252ddee6cf5a78a3d11bfd5b4f3e527e05770a
Signed-off-by: James Feist <9f787ca2e294231a0bf80dc589f168b98eea7133@linux.intel.com>

openbmc/openbmc-build-scripts,openbmc/openbmc-build-scripts