Build keystore in 32 bit on platforms that require it.

Change-Id: I29543f72ef677870aa3f108c1ae4cb029df2f871
diff --git a/keystore/Android.mk b/keystore/Android.mk
index 22bba01..9dca502 100644
--- a/keystore/Android.mk
+++ b/keystore/Android.mk
@@ -17,6 +17,9 @@
 LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
+ifeq ($(USE_32_BIT_KEYSTORE), true)
+LOCAL_MULTILIB := 32
+endif
 LOCAL_CFLAGS := -Wall -Wextra -Werror
 LOCAL_SRC_FILES := keystore.cpp keyblob_utils.cpp
 LOCAL_C_INCLUDES := external/openssl/include
@@ -36,6 +39,9 @@
 include $(BUILD_EXECUTABLE)
 
 include $(CLEAR_VARS)
+ifeq ($(USE_32_BIT_KEYSTORE), true)
+LOCAL_MULTILIB := 32
+endif
 LOCAL_CFLAGS := -Wall -Wextra -Werror
 LOCAL_SRC_FILES := keystore_cli.cpp
 LOCAL_C_INCLUDES := external/openssl/include
@@ -47,6 +53,9 @@
 
 # Library for keystore clients
 include $(CLEAR_VARS)
+ifeq ($(USE_32_BIT_KEYSTORE), true)
+LOCAL_MULTILIB := 32
+endif
 LOCAL_CFLAGS := -Wall -Wextra -Werror
 LOCAL_SRC_FILES := IKeystoreService.cpp keystore_get.cpp keyblob_utils.cpp
 LOCAL_SHARED_LIBRARIES := libbinder libutils liblog
diff --git a/softkeymaster/Android.mk b/softkeymaster/Android.mk
index 7eee9c5..0c733aa 100644
--- a/softkeymaster/Android.mk
+++ b/softkeymaster/Android.mk
@@ -15,6 +15,9 @@
 LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
+ifeq ($(USE_32_BIT_KEYSTORE), true)
+LOCAL_MULTILIB := 32
+endif
 LOCAL_MODULE := keystore.default
 LOCAL_MODULE_RELATIVE_PATH := hw
 LOCAL_SRC_FILES := module.cpp
@@ -28,6 +31,9 @@
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
+ifeq ($(USE_32_BIT_KEYSTORE), true)
+LOCAL_MULTILIB := 32
+endif
 LOCAL_MODULE := libsoftkeymaster
 LOCAL_SRC_FILES := keymaster_openssl.cpp
 LOCAL_C_INCLUDES := \