bcm4908: enable MTD_CMDLINE_PARTS

It's needed to support devices with U-Boot. That bootloader passes MTD
layout using cmdline.

Signed-off-by: Rafał Miłecki <[email protected]>

target/linux/bcm4908/config-5.10

@@ -123,6 +123,7 @@ CONFIG_MEMFD_CREATE=y
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGRATION=y
 CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_NAND_BRCMNAND=y
 CONFIG_MTD_NAND_CORE=y
 CONFIG_MTD_NAND_ECC=y

target/linux/bcm4908/config-5.4

@@ -129,6 +129,7 @@ CONFIG_MEMFD_CREATE=y
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGRATION=y
 CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_NAND_BRCMNAND=y
 CONFIG_MTD_NAND_CORE=y
 CONFIG_MTD_NAND_ECC_SW_HAMMING=y