avoids internal compiler error while compiling linux-atomic.c
See here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53833

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>

diff -Nur gcc-6.1.0.orig/libgcc/config.host gcc-6.1.0/libgcc/config.host
--- gcc-6.1.0.orig/libgcc/config.host	2016-02-26 21:02:28.000000000 +0100
+++ gcc-6.1.0/libgcc/config.host	2016-04-29 09:18:40.377989160 +0200
@@ -812,7 +812,7 @@
 m68k*-*-openbsd*)
 	;;
 m68k-*-uclinux*)	# Motorola m68k/ColdFire running uClinux with uClibc
-	tmake_file="$tmake_file m68k/t-floatlib m68k/t-linux"
+	tmake_file="$tmake_file m68k/t-floatlib"
 	md_unwind_header=m68k/linux-unwind.h
 	;;
 m68k-*-linux*)			# Motorola m68k's running GNU/Linux