jemalloc: apply recommended optimizations

The Jemalloc project suggests using
-O3 and -funroll-loops for optimization.
This commit enables these flags by default
in order to improve the performance.

Issue: FP2N-104
Change-Id: Ibb8305be459db2e670e335ab6eac333855654379
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
(cherry picked from commit https://github.com/AOSP-CAF/platform_external_jemalloc@8ffa56bfd592ea9fe807929c1a19db7bdebeb583)
diff --git a/Android.bp b/Android.bp
index a1536e4..342c70d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -17,6 +17,8 @@
 common_cflags = [
     "-std=gnu11",
     "-D_REENTRANT",
+    "-O3",
+    "-funroll-loops",
     "-fvisibility=hidden",
     "-Wno-unused-parameter",
     "-Wno-type-limits",
diff --git a/Android.mk b/Android.mk
index d571cde..184209f 100644
--- a/Android.mk
+++ b/Android.mk
@@ -19,6 +19,8 @@
 jemalloc_common_cflags := \
 	-std=gnu11 \
 	-D_REENTRANT \
+	-O3 \
+	-funroll-loops \
 	-fvisibility=hidden \
 	-Wno-unused-parameter \
 	-Wno-type-limits \