init: Fix load_firmware error

In function 'load_firmware', parameter 'buf' passed to 'write'
is wrong. To fix it, use android::base::WriteFully to replace.

Change-Id: I13f79bdc9be9e5eb669f6bd975535b1dce965ef0
Signed-off-by: Biao Lu <biao.lu@intel.com>
1 file changed