remoteproc/omap: fix randconfig unmet direct dependencies

OMAP_REMOTEPROC selects REMOTEPROC and RPMSG, both of which depend
on EXPERIMENTAL, so let's have OMAP_REMOTEPROC depend on EXPERIMENTAL
too, in order to avoid the below randconfig warnings.

warning: (OMAP_REMOTEPROC) selects REMOTEPROC which has unmet direct dependencies (EXPERIMENTAL)
warning: (OMAP_REMOTEPROC) selects RPMSG which has unmet direct dependencies (EXPERIMENTAL)

Cc: stable <stable@vger.kernel.org>
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 24d880e..db4e39b 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -7,6 +7,7 @@
 
 config OMAP_REMOTEPROC
 	tristate "OMAP remoteproc support"
+	depends on EXPERIMENTAL
 	depends on ARCH_OMAP4
 	depends on OMAP_IOMMU
 	select REMOTEPROC