Change Native Client x86 usr include and link path to match SDK expectations

test/Driver/nacl-direct.c

 // Test clang changes for NaCl Support including:
 //    include paths, library paths, emulation, default static
 //
 // RUN: %clang -no-canonical-prefixes -### -o %t.o %s \
 // RUN:     -target i686-unknown-nacl -resource-dir foo 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-I686 %s
 // CHECK-I686: {{.*}}clang{{.*}}" "-cc1"
 // CHECK-I686: "-fuse-init-array"
 // CHECK-I686: "-target-cpu" "pentium4"
 // CHECK-I686: "-resource-dir" "foo"
 // CHECK-I686: "-internal-isystem" "foo{{/|\\\\}}include"
-// CHECK-I686: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}usr{{/|\\\\}}include"
+// CHECK-I686: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}i686-nacl{{/|\\\\}}usr{{/|\\\\}}include"
 // CHECK-I686: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}include"
 // CHECK-I686: as{{(.exe)?}}" "--32"
 // CHECK-I686: ld{{(.exe)?}}"
 // CHECK-I686: "--build-id"
 // CHECK-I686: "-m" "elf_i386_nacl"
 // CHECK-I686: "-static"
 // CHECK-I686: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}lib32"
-// CHECK-I686: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}usr{{/|\\\\}}lib32"
+// CHECK-I686: "-L{{.*}}{{/|\\\\}}..{{/|\\\\}}i686-nacl{{/|\\\\}}usr{{/|\\\\}}lib"
 // CHECK-I686: "-Lfoo{{/|\\\\}}lib{{/|\\\\}}i686-nacl"
 // CHECK-I686-NOT: -lpthread
 //
 // RUN: %clang -no-canonical-prefixes -### -o %t.o %s \
 // RUN:     -target x86_64-unknown-nacl -resource-dir foo 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-x86_64 %s
 // CHECK-x86_64: {{.*}}clang{{.*}}" "-cc1"
 // CHECK-x86_64: "-fuse-init-array"
 // CHECK-x86_64: "-target-cpu" "x86-64"
 // CHECK-x86_64: "-resource-dir" "foo"
@@ skipping 57 matching lines @@
 // CHECK-ARM-CXX: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}arm-nacl{{/|\\\\}}include"
 // CHECK-ARM-CXX: "-lpthread"
 
 // RUN: %clangxx -no-canonical-prefixes -### -o %t.o %s \
 // RUN:     -target i686-unknown-nacl -resource-dir foo 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-I686-CXX %s
 // CHECK-I686-CXX: {{.*}}clang{{.*}}" "-cc1"
 // CHECK-I686-CXX: "-resource-dir" "foo"
 // CHECK-I686-CXX: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}include{{/|\\\\}}c++{{/|\\\\}}v1"
 // CHECK-I686-CXX: "-internal-isystem" "foo{{/|\\\\}}include"
-// CHECK-I686-CXX: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}usr{{/|\\\\}}include"
+// CHECK-I686-CXX: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}i686-nacl{{/|\\\\}}usr{{/|\\\\}}include"
 // CHECK-I686-CXX: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}include"
 // CHECK-I686-CXX: "-lpthread"
 
 // RUN: %clangxx -no-canonical-prefixes -### -o %t.o %s \
 // RUN:     -target x86_64-unknown-nacl -resource-dir foo 2>&1 \
 // RUN:   | FileCheck --check-prefix=CHECK-x86_64-CXX %s
 // CHECK-x86_64-CXX: {{.*}}clang{{.*}}" "-cc1"
 // CHECK-x86_64-CXX: "-resource-dir" "foo"
 // CHECK-x86_64-CXX: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}include{{/|\\\\}}c++{{/|\\\\}}v1"
 // CHECK-x86_64-CXX: "-internal-isystem" "foo{{/|\\\\}}include"
 // CHECK-x86_64-CXX: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}usr{{/|\\\\}}include"
 // CHECK-x86_64-CXX: "-internal-isystem" "{{.*}}{{/|\\\\}}..{{/|\\\\}}x86_64-nacl{{/|\\\\}}include"
 // CHECK-x86_64-CXX: "-lpthread"