include/drivers: remove implicit casts from api pointer initialization

C++ disallows implicit cast of void pointers to a non-void pointer
type.  Presence of implicit casts prevents use of these headers in C++
applications.

Process: Run the following coccinelle script:

@@
identifier V;
identifier TAG =~ "driver_api";
type T;
expression E;
@@
 T* V =
+(T *)
 E->TAG;

in this command line from $ZEPHYR_BASE:

spatch --sp-file expcast.cocci \
   --include-headers --dir include/ --very-quiet \
 | sed -e '/^\+/s@\*) @*)@' \
 | (cd include/ ; patch -p1)

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
12 files changed