gcc-4.6: Fix packaging of native toolchains

The base gcc package is missing liblto_plugin.so.  If we try a simple
hello world compile we get something like:

root@p5020-ds:~# gcc hello.c
gcc: fatal error: -fuse-linker-plugin, but liblto_plugin.so not found
compilation terminated.

We need to include liblto_plugin.so in the base gcc package and not
gcc-dev.

(From OE-Core rev: 282326a188467edf6caef21b07a7e51288674245)

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-4.6.inc

@@ -1,6 +1,6 @@
 require gcc-common.inc
 
-PR = "r1"
+PR = "r2"
 
 # Third digit in PV should be incremented after a minor release
 # happens from this branch on gcc e.g. currently its 4.6.0

meta/recipes-devtools/gcc/gcc-package-target.inc

@@ -17,6 +17,7 @@ FILES_${PN} = "\
   ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/cc* \
   ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/lto* \
   ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/lib*${SOLIBS} \
+  ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/liblto*${SOLIBSDEV} \
   ${gcclibdir}/${TARGET_SYS}/${BINV}/*.o \
   ${gcclibdir}/${TARGET_SYS}/${BINV}/specs \
   ${gcclibdir}/${TARGET_SYS}/${BINV}/lib*${SOLIBS} \