binder: Add {read,write}Uint32 methods to Parcel

Adds readUint32 and writeUint32 methods to the Parcel class. This
saves a lot of static_casting in anything implementing a Binder
interface on the native side.

Change-Id: Iafc73b0633654a3a4c49767f41806b56906c924f
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 99e539c..c526399 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -624,6 +624,12 @@
 {
     return writeAligned(val);
 }
+
+status_t Parcel::writeUint32(uint32_t val)
+{
+    return writeAligned(val);
+}
+
 status_t Parcel::writeInt32Array(size_t len, const int32_t *val) {
     if (!val) {
         return writeAligned(-1);
@@ -1035,6 +1041,15 @@
     return readAligned<int32_t>();
 }
 
+status_t Parcel::readUint32(uint32_t *pArg) const
+{
+    return readAligned(pArg);
+}
+
+uint32_t Parcel::readUint32() const
+{
+    return readAligned<uint32_t>();
+}
 
 status_t Parcel::readInt64(int64_t *pArg) const
 {