[nrfconnect] Add gcc-multilib and g++-multilib to Docker image (project-chip#37685)

Add multilibs to build Zephyr native tests for 32-bit target.

Signed-off-by: Adrian Gielniewski <adrian.gielniewski@nordicsemi.no>
Co-authored-by: Andrei Litvin <andy314@gmail.com>

Author: adigie

integrations/docker/images/base/chip-build/version

@@ -1 +1 @@
-114 : [Silabs] Update Silabs sisdk to v2024.12.1-0, Wiseconnect to 2.11.2 and wifisdk to 3.4.1
+115 : [nrfconnect] Add gcc-multilib and g++-multilib

integrations/docker/images/stage-2/chip-build-nrf-platform/Dockerfile

@@ -47,7 +47,7 @@ FROM ghcr.io/project-chip/chip-build:${VERSION}
 # Tools for building, flashing and accessing device logs
 RUN set -x \
     && apt-get update \
-    && apt-get install --no-install-recommends -fy device-tree-compiler \
+    && apt-get install --no-install-recommends -fy device-tree-compiler gcc-multilib g++-multilib \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/ \
     && : # last line