Add clkdm_get_pwrdm() to the clockdomain code.  It will return a
pointer to the powerdomain struct that the clockdomain is contained
within.  Used by the PM code.
Signed-off-by: NPaul Walmsley <paul@pwsan.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>