Few fixes for omap clocks, PRM and hwmod code:

- Fix bogus comparison of struct clk pointers, turns out
  we can fix it by just removing the comparison

- Fix am437 hardreset implementation and remove boottime
  warnings by adding the VPFE hwmod data

- Regression fix for am43xx PRM code, simplify things
  by reusing the omap4 PRM implementation
Merge tag 'for-v4.1-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.1/fixes

ARM: OMAP2+: first set of hwmod fixes for v4.1-rc

Fix a few AM43xx problems: add the VPFE hwmod data, which removes some
warnings; and fix the IP block hardreset implementation.

Basic build, boot, and PM test results are here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.1-rc/20150508130543/

Note that I do not have an AM43xx board in the testbed, and thus
cannot test on that platform.