[MIPS] Use NDK libs for ARM builds only

Signed-off-by: Chris Dearman <chris@mips.com>
diff --git a/Android.mk b/Android.mk
index a46bc63..d6c4e0d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -26,7 +26,7 @@
 LOCAL_MODULE_TAGS := optional
 LOCAL_CFLAGS += -O3 -DUSE_MMAP
 LOCAL_SRC_FILES := $(zlib_files)
-ifneq ($(TARGET_ARCH),x86)
+ifeq ($(TARGET_ARCH),arm)
   LOCAL_NDK_VERSION := 5
   LOCAL_SDK_VERSION := 9
 endif
@@ -39,7 +39,7 @@
 LOCAL_MODULE_TAGS := optional
 LOCAL_CFLAGS += -O3 -DUSE_MMAP
 LOCAL_SRC_FILES := $(zlib_files)
-ifneq ($(TARGET_ARCH),x86)
+ifeq ($(TARGET_ARCH),arm)
   LOCAL_NDK_VERSION := 5
   LOCAL_SDK_VERSION := 9
 endif
@@ -74,7 +74,7 @@
 LOCAL_SRC_FILES := $(unzip_files)
 LOCAL_MODULE:= libunz
 LOCAL_ARM_MODE := arm
-ifneq ($(TARGET_ARCH),x86)
+ifeq ($(TARGET_ARCH),arm)
   LOCAL_NDK_VERSION := 5
   LOCAL_SDK_VERSION := 9
 endif