mmc: block: add RPMB dependency

Prevent build error when CONFIG_RPMB=m and CONFIG_MMC_BLOCK=y by adding
a dependency to CONFIG_RPMB for CONFIG_MMC_BLOCK block so the RPMB
subsystem always is reachable if configured. This means that
CONFIG_MMC_BLOCK automatically becomes compiled as a module if
CONFIG_RPMB is compiled as a module. If CONFIG_RPMB isn't configured or
is configured as built-in, CONFIG_MMC_BLOCK will remain unchanged.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202409021448.RSvcBPzt-lkp@intel.com/
Fixes: 7852028a ("mmc: block: register RPMB partition with the RPMB subsystem")
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240902151231.3705204-1-jens.wiklander@linaro.orgSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/Kconfig

@@ -37,6 +37,7 @@ config PWRSEQ_SIMPLE
 config MMC_BLOCK
 	tristate "MMC block device driver"
 	depends on BLOCK
+	depends on RPMB || !RPMB
 	imply IOSCHED_BFQ
 	default y
 	help