slimbus: qcom: fix incompatible pointer warning

One of the pointer passed to dmam_alloc_coherent seems to be
phys_addr_t * instead of dma_addr_t *. This address will be
used by dma apis, so change this to proper type.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/slimbus/qcom-ctrl.c

@@ -93,7 +93,7 @@
 
 struct slim_ctrl_buf {
 	void		*base;
-	phys_addr_t	phy;
+	dma_addr_t	phy;
 	spinlock_t	lock;
 	int		head;
 	int		tail;