remoteproc: k3-m4: use the proper dependencies

The TI_K3_M4_REMOTEPROC Kconfig entry selects OMAP2PLUS_MBOX, but that
driver in turn depends on other things, which the k4-m4 driver didn't.

This causes a Kconfig time warning:

WARNING: unmet direct dependencies detected for OMAP2PLUS_MBOX
Depends on [n]: MAILBOX [=y] && (ARCH_OMAP2PLUS || ARCH_K3)
Selected by [m]:
- TI_K3_M4_REMOTEPROC [=m] && REMOTEPROC [=y] && (ARCH_K3 || COMPILE_TEST [=y])

because you can't select something that is unavailable.

Make the dependencies for TI_K3_M4_REMOTEPROC match those of the
OMAP2PLUS_MBOX driver that it needs.

Fixes: ebcf9008a895 ("remoteproc: k3-m4: Add a remoteproc driver for M4F subsystem")
Cc: Bjorn Andersson <[e-mail]>
Cc: Martyn Welch <[e-mail]>
Cc: Hari Nagalla <[e-mail]>
Cc: Andrew Davis <[e-mail]>
Cc: Mathieu Poirier <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/remoteproc/Kconfig

···
 
 config TI_K3_M4_REMOTEPROC
 	tristate "TI K3 M4 remoteproc support"
-	depends on ARCH_K3 || COMPILE_TEST
+	depends on ARCH_OMAP2PLUS || ARCH_K3
 	select MAILBOX
 	select OMAP2PLUS_MBOX
 	help