common: make pkg-config-wrapper look under lib

instead of lib32

cf. #52402, make 32-bit cross builds find qt-host-tools on a 64-bit host

.pc files contain lib32 hardcoded, lib is a symlink to the corresponding
lib{32,64} anyway, so let the wrapper look under lib

common/hooks/pre-configure/02-script-wrapper.sh

@@ -103,7 +103,7 @@ pkgconfig_wrapper() {
 export PKG_CONFIG_SYSROOT_DIR="$XBPS_CROSS_BASE"
 export PKG_CONFIG_PATH="$XBPS_CROSS_BASE/usr/lib/pkgconfig:$XBPS_CROSS_BASE/usr/share/pkgconfig\${PKG_CONFIG_PATH:+:\${PKG_CONFIG_PATH}}"
 export PKG_CONFIG_LIBDIR="$XBPS_CROSS_BASE/usr/lib/pkgconfig\${PKG_CONFIG_LIBDIR:+:\${PKG_CONFIG_LIBDIR}}"
-exec /usr/bin/pkg-config "\$@"
+exec /usr/bin/pkg-config "\$@" | sed s/lib32/lib/g
 _EOF
 	chmod 755 ${XBPS_WRAPPERDIR}/${XBPS_CROSS_TRIPLET}-pkg-config
 	if [ -z "$no_generic_pkgconfig_link" ]; then