staging: vchiq_arm: fix enum vchiq_status return types

gcc-13 notices a type mismatch between function declaration
and definition for a few functions that have been converted
from returning vchiq specific status values to regular error
codes:

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:662:5: error: conflicting types for 'vchiq_initialise' due to enum/integer mismatch; have 'int(struct vchiq_instance **)' [-Werror=enum-int-mismatch]
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1411:1: error: conflicting types for 'vchiq_use_internal' due to enum/integer mismatch; have 'int(struct vchiq_state *, struct vchiq_service *, enum USE_TYPE_E)' [-Werror=enum-int-mismatch]
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1468:1: error: conflicting types for 'vchiq_release_internal' due to enum/integer mismatch; have 'int(struct vchiq_state *, struct vchiq_service *)' [-Werror=enum-int-mismatch]

Change the declarations to match the actual function definition.

Fixes: a9fbd82 ("staging: vchiq_arm: drop enum vchiq_status from vchiq_*_internal")
Cc: stable <stable@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230117163957.1109872-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: arndb

drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h

@@ -86,7 +86,7 @@ struct vchiq_service_params_kernel {
 
 struct vchiq_instance;
 
-extern enum vchiq_status vchiq_initialise(struct vchiq_instance **pinstance);
+extern int vchiq_initialise(struct vchiq_instance **pinstance);
 extern enum vchiq_status vchiq_shutdown(struct vchiq_instance *instance);
 extern enum vchiq_status vchiq_connect(struct vchiq_instance *instance);
 extern enum vchiq_status vchiq_open_service(struct vchiq_instance *instance,

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h

@@ -100,10 +100,10 @@ vchiq_dump_platform_use_state(struct vchiq_state *state);
 extern void
 vchiq_dump_service_use_state(struct vchiq_state *state);
 
-extern enum vchiq_status
+extern int
 vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service,
 		   enum USE_TYPE_E use_type);
-extern enum vchiq_status
+extern int
 vchiq_release_internal(struct vchiq_state *state,
 		       struct vchiq_service *service);