Add new `CORTEX_M3` option (default is M4 with UMAAL) #539

	name: Renode Automated multi memory configurations

	on:
	push:
	branches: [ 'master', 'main', 'release/**' ]
	pull_request:
	branches: [ '*' ]

	jobs:
	renode_automated_fastmath:
	runs-on: ubuntu-20.04

	steps:
	- uses: actions/checkout@v2
	with:
	submodules: true

	- name: Select config
	run: \|
	cp config/examples/nrf52840.config .config && make include/target.h

	##### FAST MATH tests

	# ECC256 TEST
	- name: Renode Tests ECC256
	run: ./tools/renode/docker-test.sh "SIGN=ECC256 SPMATH=0"


	# ECC384 TEST
	- name: Renode Tests ECC384
	run: ./tools/renode/docker-test.sh "SIGN=ECC384 SPMATH=0"


	# RSA2048 TEST
	- name: Renode Tests RSA2048
	run: ./tools/renode/docker-test.sh "SIGN=RSA2048 SPMATH=0"



	# RSA4096 TEST: RSA with TFM requires a very large stack (>64KB) total
	# This test has been disabled.
	# RSA3072 TEST
	# - name: Renode Tests RSA3072
	# run: ./tools/renode/docker-test.sh "SIGN=RSA3072 SPMATH=0"


	# RSA4096 TEST: RSA with TFM requires the possibility to allocate
	# large amount of stack space (about 70KB) which are not available
	# on the renode target. This test has been disabled.

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