* Fix ghostscript for aarch64.
* ghostscript: fix arm header
* ghostscript: clean build script
* ghostscript: disable i686 and x86_64 for now and enable package!
* Add required build dependencies for ghostscript to setup scripts
* ghostscript: add libexpat as dependency
* ghostscript: add (untested) generated headers for x86_64 and i686
Package builds but doesn't work on device, running gs gives error:
"GPL Ghostscript 9.21: /home/builder/.termux-build/ghostscript/src/psi/interp.c(303): Fatal error -20 in gs_interp_init!"
