hv: Select CONFIG_SYSFB only for CONFIG_HYPERV_VMBUS

commit d33db95 upstream.

Hyperv's sysfb access only exists in the VMBUS support. Therefore
only select CONFIG_SYSFB for CONFIG_HYPERV_VMBUS. Avoids sysfb code
on systems that don't need it.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 9695928 ("Drivers: hv: Always select CONFIG_SYSFB for Hyper-V guests")
Cc: Michael Kelley <mhklinux@outlook.com>
Cc: Saurabh Sengar <ssengar@linux.microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-hyperv@vger.kernel.org
Cc: <stable@vger.kernel.org> # v6.16+
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Link: https://patch.msgid.link/20260402092305.208728-2-tzimmermann@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: tdz

drivers/hv/Kconfig

@@ -9,7 +9,6 @@ config HYPERV
 	select PARAVIRT
 	select X86_HV_CALLBACK_VECTOR if X86
 	select OF_EARLY_FLATTREE if OF
-	select SYSFB if EFI && !HYPERV_VTL_MODE
 	select IRQ_MSI_LIB if X86
 	help
 	  Select this option to run Linux as a Hyper-V client operating
@@ -61,6 +60,7 @@ config HYPERV_VMBUS
 	tristate "Microsoft Hyper-V VMBus driver"
 	depends on HYPERV
 	default HYPERV
+	select SYSFB if EFI && !HYPERV_VTL_MODE
 	help
 	  Select this option to enable Hyper-V Vmbus driver.