Claiming that all of PXA has CLK implemented, while only PXA3XX
selects the relevant clock implementations causes lots of build
failures for the other PXA architectures.
Fix it by moving the HAVE_CLK select to the one PXA arch, that
actually has it.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>