drm/msm/a6xx: correct cx_debugbus_read arguments

First argument of cx_debugbus_read() should be 'void __iomem *' rather
than 'void * __iomem' to make sparse happy.

Signed-off-by: Dmitry Baryshkov <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Rob Clark <[e-mail]>

drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c

···
 	msm_readl((ptr) + ((offset) << 2))
 
 /* read a value from the CX debug bus */
-static int cx_debugbus_read(void *__iomem cxdbg, u32 block, u32 offset,
+static int cx_debugbus_read(void __iomem *cxdbg, u32 block, u32 offset,
 		u32 *data)
 {
 	u32 reg = A6XX_CX_DBGC_CFG_DBGBUS_SEL_A_PING_INDEX(offset) |