cpio: fix install if bindir == base_bindir

Don't try to move binaries onto themselves if ${bindir} and
${base_bindir} are the same, as is the case on systems with a
merged /usr directory.

(From OE-Core rev: 29e4d21a7101428ac44e60411883952b041fcbc1)

Signed-off-by: Dominic Sacré <dominic.sacre@gmx.de>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/cpio/cpio_v2.inc

@@ -18,9 +18,11 @@ EXTRA_OECONF += "DEFAULT_RMT_DIR=${base_sbindir}"
 
 do_install () {
     autotools_do_install
-    install -d ${D}${base_bindir}/
-    mv "${D}${bindir}/cpio" "${D}${base_bindir}/cpio"
-    rmdir ${D}${bindir}/
+    if [ "${base_bindir}" != "${bindir}" ]; then
+        install -d ${D}${base_bindir}/
+        mv "${D}${bindir}/cpio" "${D}${base_bindir}/cpio"
+        rmdir ${D}${bindir}/
+    fi
 }
 
 PACKAGES =+ "${PN}-rmt"