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Code complexity is a good indication of maintainability versus
testability of a piece of software.

ISO26262 introduces the following thresholds:

    complexity < 10 is accepted
    10 <= complexity < 20 has to be justified
    complexity >= 20 cannot be accepted

Rationale is that number of test cases to fully test a piece of
software can (depending on the coverage metrics) grow exponentially
with the number of branches in the software.

This patch removes redundant conditionals from 'ipc_send_req_atomic'
handler to reduce the McCabe Cyclomatic Complexity for this function

Change-Id: I20fef79a771301e1c824aea72a45ff83f97591d5
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>