[testsuite] skip gcc.target/arm/pr19599.c for -mthumb

[Janis Johnson]

This patch skips an arm test if the multilib flags include "-mthumb",
which would override the "-marm" used for the test.  Tested with
several sets of flags for arm-none-eabi and checked in as obvious.

Janis

2013-04-24  Janis Johnson  <jani...@codesourcery.com>

        * arm-none-linux-eabi.inc (print_eembc_scale_factor): decrease
        for rexella.

Index: release-configs/arm-none-linux-eabi.inc
===================================================================
--- release-configs/arm-none-linux-eabi.inc     (revision 409607)
+++ release-configs/arm-none-linux-eabi.inc     (working copy)
@@ -51,6 +51,9 @@
        (averil*)
            echo 2
            ;;
+       (rexella*)
+           echo 2
+           ;;
        (*)
            echo 100
            ;;