ix.4: describe better

+ add controller name to title for search keywords

• remove "for the freebsd operating system" from title/search keywords
• remove (R) from the page title for consistency with other drivers
• increase specificity of HARDWARE for inclusion in Release HW Notes
• order HARDWARE in reverse chronological so non-eol appear first
• s/PCI/PCIe/

Reported by: kbowling (additional hardware supported)
Pull Request: https://github.com/freebsd/freebsd-src/pull/1494

(cherry picked from commit 2d28fd51e5b9d8ef184445dfa204f6ba22d460a5)