machine/aarch64-tc.conf: Fix incorrect ilp32 pkgarch
machine/aarch64-tc.conf: Fix incorrect ilp32 pkgarch

If there is a _ in the package arch, the sstate-control files are written
with a _.  However, when they are used they somehow get translated to a
-, triggering a warning message.  The warning though means that the
sstate component was not actually staged into the recipe-sysroot, causing
a later build failure.

Signed-off-by: Mark Hatle <41765ab18fb75e64ff0efe27f2ebcdb2d6f7e44e@xilinx.com>

Xilinx/meta-xilinx,Xilinx/meta-xilinx,Xilinx/meta-xilinx,Xilinx/meta-xilinx,Xilinx/meta-xilinx,Xilinx/meta-xilinx