Use NULL instead of 0 when invoking CallStaticVoidMethod

static void CallStaticVoidMethod is variable argument function.
if pass 0 to the function like: CallStaticVoidMethod(......, 0),
0 will be treated as INT data type.but in the CallStaticVoidMethod
implement 0 will be treated as pointer data type.Pointer in 64bit
system occupied 8 bytes, but in 64bit system int occupied 4 bytes.
if call function like: CallStaticVoidMethod(......, 0),
only low 4 bytes will be assigned 0.Turned out it actually call
function like this: CallStaticVoidMethod(......, 0xXXXXXXXX00000000).
intent to pass NULL to function but passed non-NULL parameter to
the function.this will cause GCDaemon crash.

Bug: 18911458
Change-Id: I9d700d3790a80dbee6826f64baf9ef5d81ca390f
Reviewed-by: Liao, Bruce <bruce.liao@intel.com>
Signed-off-by: Yong Yao <yong.yao@intel.com>