Move to CMake 3.20.0.
At the Toolchain WG it was decided to move to CMake 3.20.0.
The main reason for increasing CMake version is better toolchain
support.
Better toolchain support is added in the following CMake versions:
- armclang, CMake 3.15
- Intel oneAPI, CMake 3.20
- IAR, CMake 3.15 and 3.20
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
In the current code the naming of the
CONFIG_RPMSG_MULTI_INSTANCE_?_IPM_{TX,RX}_NAME symbol is 1-based. While
this is not currently an issue, it could easily become such if the
symbol is programmatically used as part of a preprocessor enumeration
(for example when using DT_INST_FOREACH_STATUS_OKAY(...) & co).
To avoid trouble, just make the index starting from 0 instead than 1.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
