scripts: Add -mno-unaligned-access to clang armv7a sample #134

Job	Run time
cache-maker	7m 49s
minsize-zephyr (./.github/do-zephyr)	41m 58s
release-zephyr (./.github/do-zephyr)	44m 29s
minsize-zephyr (-Dio-float-exact=false -Dio-long-long=true -Dio-percent-b=true -Dio-long-double=t...	41m 56s
minsize-zephyr (-Dformat-default=integer -Dfreestanding=true -Dposix-io=false -Dnewlib-obsolete-m...	41m 20s
release-zephyr (-Dio-float-exact=false -Dio-long-long=true -Dio-percent-b=true -Dio-long-double=t...	44m 18s
minsize-zephyr (-Dtinystdio=false, ./.github/do-zephyr)	23m 11s
release-zephyr (-Dformat-default=integer -Dfreestanding=true -Dposix-io=false -Dnewlib-obsolete-m...	43m 4s
minsize-zephyr (-Dtinystdio=false -Dnewlib-io-float=true -Dio-long-long=true -Dio-long-double=tru...	20m 55s
release-zephyr (-Dtinystdio=false, ./.github/do-zephyr)	25m 12s
release-zephyr (-Dtinystdio=false -Dnewlib-io-float=true -Dio-long-long=true -Dio-long-double=tru...	23m 7s
	5h 57m 19s

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