EHF: MISRA fixes

These changes address most of the required MISRA rules. In the process,
some from generic code are also fixed.

No functional changes.

Change-Id: I19786070af7bc5e1f6d15bdba93e22a4451d8fe9
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
4 files changed