Fix doc in TF_CALL_ when invoked in mobile platform (#13881)

* Fix doc in TF_CALL_ when defined(IS_MOBILE_PLATFORM) && !defined(__ANDROID_TYPES_FULL__)

This is a small doc fix that includes bool as part of the types
that is supported in mobile (IS_MOBILE_PLATFORM && !__ANDROID_TYPES_FULL__),
as bool is clearly invoked in the following define.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Also add bool to android full version.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>