From: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
Change "subnodes" to "subnode" in subnode description for better grammatical
accuracy, capitalize pinmux description, wrap all descriptions at 80 characters,
and remove literal style indicators from descriptions that don't need their new
lines preserved.
Signed-off-by: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>