ARM: OMAP2+: first set of hwmod fixes and additions for v4.6

A few fixes for OMAP hwmod data.  SSI hwmod data for the OMAP 3730,
and some fixes for the DRA7xx hwmod data.  These shouldn't interfere
or impact anything else.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.6/20160214161224/
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