staging: fsl-mc: use 32bits to support 64K size mc-portals

As per APIs each mc-portal is of 64K size while currently
16bits (type u16) is used to store size of mc-portal.
In these cases upper bit of portal size gets truncated.
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Acked-By: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fsl-mc/include/mc.h

@@ -325,7 +325,7 @@ static inline void mc_cmd_read_api_version(struct mc_command *cmd,
 struct fsl_mc_io {
 	struct device *dev;
 	u16 flags;
-	u16 portal_size;
+	u32 portal_size;
 	phys_addr_t portal_phys_addr;
 	void __iomem *portal_virt_addr;
 	struct fsl_mc_device *dpmcp_dev;