remoteproc: k3-r5: Add compile testing support

This driver can be compile tested on non-K3 architectures as long
as TI_SCI_PROTOCOL is not compiled as a module. Enable this here
to improve this driver's build coverage.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20241016164141.93401-3-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

Author: glneo

drivers/remoteproc/Kconfig

@@ -355,7 +355,8 @@ config TI_K3_M4_REMOTEPROC
 
 config TI_K3_R5_REMOTEPROC
 	tristate "TI K3 R5 remoteproc support"
-	depends on ARCH_K3
+	depends on ARCH_K3 || COMPILE_TEST
+	depends on TI_SCI_PROTOCOL || (COMPILE_TEST && TI_SCI_PROTOCOL=n)
 	depends on OMAP2PLUS_MBOX
 	help
 	  Say m here to support TI's R5F remote processor subsystems