Fix mips build for libbinder.

Mips specific code was using an uninitialized variable.

(cherry picked from commit 2c68d380c9ef765a7d46e5a4735f39e6c27849f2)

Change-Id: I6b562b3f6d2084b72e747736cbf43684c2049f8e
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index db6369d..fda2715 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -1036,6 +1036,7 @@
       double d;
       unsigned long long ll;
     } u;
+    u.d = 0;
     status_t status;
     status = readAligned(&u.ll);
     *pArg = u.d;