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This patch converts the common SiP handler to SoC specific SiP
handler. T210 and T132 have different SiP SMCs and so it makes
sense to move the SiP handler to soc/t132 and soc/t210 folders.

Change-Id: Idfe48384d63641137d74a095432df4724986b241
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>