v4l2-ctl/dbg: include android-config.h header file if ANDROID is set

v4l2-ctl/dbg: include android-config.h header file if ANDROID is set

If the ANDROID symbol is defined, done by Android toolchain by default,
include the android-config.h header file instead of the autogenerated
config.h header file.

Android build system is completely different from autoconf and make, and
is not capable, without some hacks, to generate the config.h header
file.

Signed-off-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
[hans.verkuil@cisco.com: moved config(-android).h include to v4l2-ctl.h]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>