[ARM] Convert DMA cache handling to take const void * args
Russell King authored

The DMA cache handling functions take virtual addresses, but in the
form of unsigned long arguments.  This leads to a little confusion
about what exactly they take.  So, convert them to take const void *
instead.
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
7ae5a761