libid3tag: fix broken configure script not using CFLAGS for conftest

This issue can appear when the toolchain must be explicitely configured
for a specific ABI (e.g: floating point on ARM).

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@35681 3c298f89-4303-0410-b956-a3cf2f4a3e73
libmad: revert r20699

We are otherwise breaking builds where the toolchain ABI must be
explicitely specified (e.g: floating point on ARM).

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@35682 3c298f89-4303-0410-b956-a3cf2f4a3e73