OMAP powerdomain, hwmod, omap_device: add some credits

Add some missing credits for people who have contributed significant features
or fixes.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: BenoƮt Cousson <b-cousson@ti.com>
Cc: Tero Kristo <tero.kristo@nokia.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Thara Gopinath <thara@ti.com>
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index 0f51974..f899603 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -2,10 +2,10 @@
  * omap_device implementation
  *
  * Copyright (C) 2009 Nokia Corporation
- * Paul Walmsley
+ * Paul Walmsley, Kevin Hilman
  *
  * Developed in collaboration with (alphabetical order): Benoit
- * Cousson, Kevin Hilman, Tony Lindgren, Rajendra Nayak, Vikram
+ * Cousson, Thara Gopinath, Tony Lindgren, Rajendra Nayak, Vikram
  * Pandita, Sakari Poussa, Anand Sawant, Santosh Shilimkar, Richard
  * Woodruff
  *