C#: public fields with getters/setters cannot be marked readonly
C#: public fields with getters/setters cannot be marked readonly

MSVC would fail with the following error:
error CS0106: The modifier 'readonly' is not valid for this item

Reported-by: Raluca Chis <cb4a91cc582c251db05a6dd47f3fb924f14a5e47@analog.com>
Signed-off-by: Paul Cercueil <a027184a55211cd23e3f3094f1fdc728df5e0500@crapouillou.net>

analogdevicesinc/libiio,analogdevicesinc/libiio,analogdevicesinc/libiio,analogdevicesinc/libiio