mvebu: cortex-a72: enable MikroTik platform drivers and NOR variable erase

MikroTik RB5009 will be using advantage of the MikroTik platform drivers,
RouterBoot partition parser and SPI NOR variable erase support.

Link: https://github.com/openwrt/openwrt/pull/15765
Signed-off-by: Robert Marko <[email protected]>

target/linux/mvebu/cortexa72/config-6.6

@@ -61,6 +61,10 @@ CONFIG_MFD_IEI_WT61P803_PUZZLE=y
 CONFIG_MFD_SYSCON=y
 CONFIG_MMC_SDHCI_XENON=y
 CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_MIKROTIK=y
+CONFIG_MIKROTIK_RB_SYSFS=y
+CONFIG_MTD_ROUTERBOOT_PARTS=y
+CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y
 CONFIG_MVEBU_GICP=y
 CONFIG_MVEBU_ICU=y
 CONFIG_MVEBU_ODMI=y