Warning fix for asg_context_create

Seen on a full build:

warning: unused function 'asg_context_create' [-Wunused-function]
  static struct asg_context asg_context_create(

This warning is emitted because some files include
address_space_graphics_types.h but do not use asg_context_create().
Make the function inline so the compiler ignores the issue.

Change-Id: I0dfe155d50aa76e9fa0b36ba9f6e93ae0a05b3d3
1 file changed