fix: add split workaround check in Errata ABI test

This patch adds support to validate split workarounds
as part of Errata ABI CPU Features testcase. It also
improves the test case, making sure it also
runs on lead cpu.

Change-Id: Ic21fffdf20714ad639e92ad0be96d2f154f37f04
Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
2 files changed