Fix typo in stp target.

Bug: 23294489
Change-Id: If43bac424c93948732603f32ed2b4190acf3f5d2
diff --git a/include/libunwind-aarch64.h b/include/libunwind-aarch64.h
index 700ed17..9883cf3 100644
--- a/include/libunwind-aarch64.h
+++ b/include/libunwind-aarch64.h
@@ -194,7 +194,7 @@
      "stp x8, x9, [%[base], #64]\n" \
      "stp x10, x11, [%[base], #80]\n" \
      "stp x12, x13, [%[base], #96]\n" \
-     "stp x14, x13, [%[base], #112]\n" \
+     "stp x14, x15, [%[base], #112]\n" \
      "stp x16, x17, [%[base], #128]\n" \
      "stp x18, x19, [%[base], #144]\n" \
      "stp x20, x21, [%[base], #160]\n" \