Enable native targets used for non-SFI

We currently don't allow native target for clang_nacl, but we need to
lift this restriction to enable the use of nacl-clang to build support
libraries for non-SFI mode.

BUG= None
R=dschuff@chromium.org

Review URL: https://codereview.chromium.org/1283983002 .
diff --git a/make/platform/clang_nacl.mk b/make/platform/clang_nacl.mk
index b6a8505..ec04bc9 100644
--- a/make/platform/clang_nacl.mk
+++ b/make/platform/clang_nacl.mk
@@ -20,8 +20,6 @@
 
 CompilerTargetArch := $(firstword $(subst -, ,$(CompilerTargetTriple)))
 $(call CheckValue,CompilerTargetTriple)
-# Only define configs if we detected a nacl target.
-ifneq ($(findstring -nacl,$(CompilerTargetTriple)),)
 
 ifneq ($(findstring pnacl-clang,$(CC)),)
 # pnacl-clang already uses the integrated assembler and does not support the
@@ -40,13 +38,7 @@
 Configs += full-x86_64
 Arch.full-x86_64 := x86_64
 else
-ifeq ($(call contains,arm,$(CompilerTargetArch)),true)
-# arm-nacl-clang reports this target
-Configs += full-arm
-Arch.full-arm := armv7
-else
-ifeq ($(call contains,armv7,$(CompilerTargetArch)),true)
-# pnacl-clang with arm bias (used for arm-nonsfi) reports this target
+ifeq ($(call contains,arm armv7 armv7a,$(CompilerTargetArch)),true)
 Configs += full-arm
 Arch.full-arm := armv7
 else
@@ -65,7 +57,6 @@
 endif
 endif
 endif
-endif
 
 endif