bionic: modify syscall to use 6 registers to pass parameter.

Kernel allows to use 6 registers(exclude eax) to pass parameter.
But in syscall's implementation, it only uses five registers.
It will lead to error when 6 parameters passed.

Change-Id: I92d663194e6334c3847f0c0c257ca3b9dee0edef
Author: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Xiaokang Qin <xiaokang.qin@intel.com>
Signed-off-by: Beare, Bruce J <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 30838
1 file changed