Tegra: sip_calls: fix defects flagged by MISRA scan
Tegra: sip_calls: fix defects flagged by MISRA scan

Main fixes:

* Expressions resulting from the expansion of macro parameters
  shall be enclosed in parentheses [Rule 20.7]
* Added explicit casts (e.g. 0U) to integers in order for them
  to be compatible with whatever operation they're used in [Rule
  10.1]
* Fix implicit widening of composite assignment [Rule 10.6]

Change-Id: Ia83c3ab6e4c8c03c19c950978a7936ebfc290590
Signed-off-by: Anthony Zhou <73aac1c215d5dc4b872f9dcd89236806f5a053ae@nvidia.com>
Signed-off-by: Varun Wadekar <517ae08f01cae398dbba5bef5ba1750f384c6daf@nvidia.com>

achingupta/arm-trusted-firmware,achingupta/arm-trusted-firmware