target-sdk-provides-dummy: extend packages for multilib case

If we have installed some lib32 package which depends on perl/bash,
then populating sdk for that image would fail with the following error.

  Error:
  Problem: package lib32-libxml-namespacesupport-perl-1.12-r0.corei7_32 requires lib32-perl, but none of the providers can be installed

    package target-sdk-provides-dummy-1.0-r0.sdk_provides_dummy_target conflicts with /usr/bin/perl provided by lib32-perl-5.30.0-r0.corei7_32
    package target-sdk-provides-dummy-1.0-r0.sdk_provides_dummy_target conflicts with libperl.so.5 provided by lib32-perl-5.30.0-r0.corei7_32

This could be produced by the following steps:
1. IMAGE_INSTALL_append = " lib32-valgrind"
2. bitbake core-image-minimal -c populate_sdk

We need to extend all packages in DUMMYPROVIDES to avoid such problems.

(From OE-Core rev: 6a38c6aafc2956bb6f7824eff4ac0f630f02da75)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/meta/target-sdk-provides-dummy.bb

@@ -1,6 +1,6 @@
 DUMMYARCH = "sdk-provides-dummy-target"
 
-DUMMYPROVIDES = "\
+DUMMYPROVIDES_PACKAGES = "\
     busybox \
     busybox-dev \
     busybox-src \
@@ -42,15 +42,19 @@ DUMMYPROVIDES = "\
     perl-module-threads \
     perl-module-warnings \
     perl-module-warnings-register \
+    pkgconfig \
+    pkgconfig-dev \
+    pkgconfig-src \
+"
+
+DUMMYPROVIDES = "\
+    ${@' '.join([multilib_pkg_extend(d, pkg) for pkg in d.getVar('DUMMYPROVIDES_PACKAGES').split()])} \
     /bin/sh \
     /bin/bash \
     /usr/bin/env \
     /usr/bin/perl \
     libperl.so.5 \
     libperl.so.5()(64bit) \
-    pkgconfig \
-    pkgconfig-dev \
-    pkgconfig-src \
 "
 
 require dummy-sdk-package.inc