[build] update build scripts and add multi-radio (TREL) CI build checks (#6518)

This commit updates `toranj/build.sh` script for posix based builds to
generate CLI executable. It also updates the posix platform to provide
log functionality when `LOG_OUTPUT` is set to `LOG_OUTPUT_APP`.

This commit also adds CI build checks for multi-radio and TREL build
configurations under posix platform.

script/check-posix-build-autotools

@@ -42,6 +42,15 @@ build()
     if [[ $OSTYPE != "darwin"* ]]; then
         reset_source
         make -f src/posix/Makefile-posix RCP_RESTORATION_MAX_COUNT=2 RCP_BUS=spi
+
+        reset_source
+        ./tests/toranj/build.sh posix
+
+        reset_source
+        ./tests/toranj/build.sh posix-15.4+trel
+
+        reset_source
+        ./tests/toranj/build.sh posix-trel
     fi
 }
 

script/check-posix-build-cmake

@@ -45,6 +45,13 @@ build()
     )
 
     "$(dirname "$0")"/cmake-build posix "${options[@]}"
+
+    options+=(
+        "-DOT_TREL=ON"
+    )
+
+    reset_source
+    "$(dirname "$0")"/cmake-build posix "${options[@]}"
 }
 
 main()