As we move toward multiplatform support for the Integrator family
we need to localize all <mach/*> headers. This moves the impd1.h
header down to the machine folder, copying the the three defines
only used by the clock driver down into the clock driver.
Cc: Will Deacon <will.deacon@arm.com> Cc: Jonathan Austin <jonathan.austin@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mike Turquette <mturquette@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>