i965: fix autotools/android build

i965: fix autotools/android build

Autotools/android builds generate the header & code files in 2 steps,
but the code generation requires the name of the header file to
include it.

This change generates both files in one command.

Fixes: 035cc7a12dc ("i965: perf: reduce i965 binary size")
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>