debian/_ipk.bbclass: Added multilib support for package_name_hook()

[YOCTO #1486]
1. Added multilib support for package_name_hook() so MLPREFIX is kept in
the final package name.

2. clean the output of log_check_ipk.

(From OE-Core rev: e59c4e34daa688c033dd4ac07a69099610ac5705)

Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/debian.bbclass

@@ -104,6 +104,10 @@ python debian_package_name_hook () {
 						newpkg = pkgname
 					else:
 						newpkg = pkg.replace(orig_pkg, devname, 1)
+					mlpre=bb.data.getVar('MLPREFIX', d, True)
+					if mlpre:
+						if not newpkg.find(mlpre) == 0:
+							newpkg = mlpre + newpkg
 					if newpkg != pkg:
 						bb.data.setVar('PKG_' + pkg, newpkg, d)
 

meta/classes/package_ipk.bbclass

@@ -75,6 +75,7 @@ package_tryout_install_multilib_ipk() {
 			fi
 		done
 		if [ ! -z "${selected_pkg}" ]; then
+			rm -f ${target_rootfs}
 			mkdir -p ${target_rootfs}/${opkglibdir}
 			opkg-cl ${ipkg_args} update
 			opkg-cl ${ipkg_args} install ${selected_pkg}

meta/classes/rootfs_ipk.bbclass

@@ -114,7 +114,7 @@ fakeroot rootfs_ipk_do_rootfs () {
 			rm -rf ${IMAGE_ROOTFS}${opkglibdir}
 		fi
 	fi
-
+	set +x
 	log_check rootfs 	
 }