doc: Split protocol description paragraphs properly
doc: Split protocol description paragraphs properly

The xsl translation from the protocol xml to publican would create only
one paragraph for all the text in a description. Make it generate one
paragraph for each block of text separated by two consecutive line
breaks instead.

Signed-off-by: Ander Conselvan de Oliveira <71330eafc99ba196752d2b2af84b34019e4104c2@intel.com>
Signed-off-by: Tiago Vignatti <f080760b2054d506aacc8dee97f8804c19fbc3aa@intel.com>

eyolfson/wayland,bitfactor/wayland,mchalupa/wayland,tulcod/wayland,abooij/wayland,abooij/wayland,sir-murray/wayland,tulcod/wayland,tulcod/wayland,eyolfson/wayland,bitfactor/wayland,abooij/wayland,eyolfson/wayland,mchalupa/wayland,bitfactor/wayland,sir-murray/wayland,mchalupa/wayland,sir-murray/wayland