staging: vchiq_core: Add parentheses to VCHIQ_MSG_SRCPORT

checkpatch.pl complains

ERROR: Macros with complex values should be enclosed in parentheses
+#define VCHIQ_MSG_SRCPORT(msgid) \
+	(unsigned short)(((unsigned int)(msgid) >> 12) & 0xfff)

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Link: https://lore.kernel.org/r/20240425165852.6681-4-wahrenst@gmx.net


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>