Remove include <linux/android_pmem.h>

This file is not needed any more and it doesn't exist in the uapi kernel
headers.

Bug: 11559337

(cherry picked from commit 452b39701108170215ec0c1fc23a97baefc97f15)

Change-Id: I75357925a64863fea5b71b3a61ba5f7029ab65ca
diff --git a/camera/QCamera2/stack/mm-jpeg-interface/test/mm_jpeg_ionbuf.h b/camera/QCamera2/stack/mm-jpeg-interface/test/mm_jpeg_ionbuf.h
index 7bc62cc..d25156b 100644
--- a/camera/QCamera2/stack/mm-jpeg-interface/test/mm_jpeg_ionbuf.h
+++ b/camera/QCamera2/stack/mm-jpeg-interface/test/mm_jpeg_ionbuf.h
@@ -36,7 +36,6 @@
 #include <sys/mman.h>
 #include <unistd.h>
 #include <errno.h>
-#include <linux/android_pmem.h>
 #include <fcntl.h>
 #include "mm_jpeg_dbg.h"