print/ghostscript9-agpl-base: Fix build on armv7

The bundled version of tesseract requires the <asm/hwcap.h> header
to detect the availability of NEON instructions on armv7. This
issue has already been reported to up stream.

Reported upstream: https://github.com/tesseract-ocr/tesseract/pull/3782

PR: 263003
Approved by: portmgr (build fix blanket)