perl: fix for non /usr/lib libdir case

the config.sh is hardcoded to be /usr/lib, which does not work in non
/usr/lib libdir case.

This patch replace the hard code /usr/lib with ${libdir} to fix this issue

(From OE-Core rev: 603c5a241f0549da00334ac62dcbd1b0a72b6c82)

Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/perl/perl_5.12.3.bb

@@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://Copying;md5=2b4c6ffbcfcbdee469f02565f253d81a \
 # We need gnugrep (for -I)
 DEPENDS = "virtual/db grep-native"
 DEPENDS += "gdbm zlib"
-PR = "r2"
+PR = "r3"
 
 # 5.10.1 has Module::Build built-in
 PROVIDES += "libmodule-build-perl"
@@ -150,6 +150,7 @@ do_configure() {
                -e 's,@ARCH@-thread-multi,,g' \
                -e 's,@ARCH@,${TARGET_ARCH}-${TARGET_OS},g' \
                -e "s%/usr/include%${STAGING_INCDIR}%g" \
+	       -e 's,/usr/lib/,${libdir}/,g' \
 	       -e 's,/usr/,${exec_prefix}/,g' \
 	       -e 's,/perl5,/perl,g' \
             config.sh-${TARGET_ARCH}-${TARGET_OS}