staging: android: binder: clean up for all the stat statments

An initial cleanup of all the binder_stat statements. The binder
command and return stats still need some assistance tho.

Signed-off-by: Daniel Walker <dwalker@fifo99.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>