gdbclient: use 64-bit suffix for all library symbols

Correct the solib-search-path for 64-bit to look in /system/lib64
for all libraries including those in subdirectories.

Change-Id: I606a0eae1137a857564facc79306ad83097d9659
diff --git a/envsetup.sh b/envsetup.sh
index 5ed3dc1..3b9423b 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -1021,8 +1021,10 @@
                echo ""
        fi
 
+       OUT_SO_SYMBOLS=$OUT_SO_SYMBOLS$USE64BIT
+
        echo >|"$OUT_ROOT/gdbclient.cmds" "set solib-absolute-prefix $OUT_SYMBOLS"
-       echo >>"$OUT_ROOT/gdbclient.cmds" "set solib-search-path $OUT_SO_SYMBOLS$USE64BIT:$OUT_SO_SYMBOLS/hw:$OUT_SO_SYMBOLS/ssl/engines:$OUT_SO_SYMBOLS/drm:$OUT_SO_SYMBOLS/egl:$OUT_SO_SYMBOLS/soundfx"
+       echo >>"$OUT_ROOT/gdbclient.cmds" "set solib-search-path $OUT_SO_SYMBOLS:$OUT_SO_SYMBOLS/hw:$OUT_SO_SYMBOLS/ssl/engines:$OUT_SO_SYMBOLS/drm:$OUT_SO_SYMBOLS/egl:$OUT_SO_SYMBOLS/soundfx"
        echo >>"$OUT_ROOT/gdbclient.cmds" "source $ANDROID_BUILD_TOP/development/scripts/gdb/dalvik.gdb"
        echo >>"$OUT_ROOT/gdbclient.cmds" "target remote $PORT"
        echo >>"$OUT_ROOT/gdbclient.cmds" ""