EX-7784 tests: reenable arm testing

EX-7784 tests: reenable arm testing

Previously, test 460a failed every time on ARM systems with
an issue with lnet/lnb transfers.

After a significant rework of the client compression code
for EX-7601, this no longer happens.

Test-Parameters: trivial testlist=sanity clientdistro=el8.8 clientarch=aarch64
Test-Parameters: trivial testlist=sanity clientdistro=el8.8 clientarch=aarch64
Test-Parameters: trivial testlist=sanity clientdistro=el8.8 clientarch=aarch64
Test-Parameters: trivial testlist=sanity clientdistro=el8.8 clientarch=aarch64
Test-Parameters: trivial testlist=sanity clientdistro=el8.8 clientarch=aarch64
Test-Parameters: trivial testlist=sanity clientdistro=el8.8 clientarch=aarch64
Test-Parameters: trivial testlist=sanity clientdistro=el8.8 clientarch=aarch64
Test-Parameters: trivial testlist=sanity clientdistro=el8.8 clientarch=aarch64
Signed-off-by: Patrick Farrell <pfarrell@whamcloud.com>
Change-Id: I0490a2e7cbadb1492b58eb27c6bf8001b0704b5b
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/53201
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Artem Blagodarenko <ablagodarenko@ddn.com>