We already had the hooks for ccmram and ram1 and ram2 and ram3 and xsram
for "other" ram sections, but there was no method, out of the box, for
placing a function in "normal" ram. The "easy" method of labelling a
function as ".data.someramfunc" causes warnings because code isn't meant
to have a name like ".data*" so we must explicitly add a new code
section.
Signed-off-by: Karl Palsson <karlp@tweak.net.au>