media: atomisp: disable the dummy PM driver is atomisp driver is built

As the atomisp driver should already be handling the ISP
PCI ID, there's no sense on keeping the dummy driver enabled
in tis case.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/platform/x86/Kconfig

@@ -741,6 +741,7 @@ config THINKPAD_ACPI_HOTKEY_POLL
 config INTEL_ATOMISP2_PM
 	tristate "Intel AtomISP2 dummy / power-management driver"
 	depends on PCI && IOSF_MBI && PM
+	depends on !INTEL_ATOMISP
 	help
 	  Power-management driver for Intel's Image Signal Processor found on
 	  Bay Trail and Cherry Trail devices. This dummy driver's sole purpose