powerpc64-linux: Update cached autoconf value for apr on powerpc64

powerpc64-linux: Update cached autoconf value for apr on powerpc64

Fix below apr configure issue of powerpc64 targets.
| configure:27173: checking whether TCP_NODELAY and TCP_CORK can both be
| enabled
| configure:27179: error: in `/home/yocto/workspace/sdk-devel/build_p5020ds-64b_release/tmp/work/ppc64e5500-fsl-linux/apr/1.4.6-r2/apr-1.4.6':
| configure:27181: error: cannot run test program while cross compiling

(From OE-Core rev: 742b6fe11190839120fc99662c0c51aac5f22c04)

Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>