[openwrt/openwrt] mvebu: enable CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y config option

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/2d712021cd776eabe03052dafbb5774c77df9fcf

commit 2d712021cd776eabe03052dafbb5774c77df9fcf
Author: Enrico Mioso <mrkiko.rs at gmail.com>
AuthorDate: Tue Jul 2 18:09:08 2024 +0200

    mvebu: enable CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y config option
    
    Enable the CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE kernel option to allow for
    U-Boot environment writing. This might be hiding a problem somewhere else,
    since the w25q128fw chip supports 32K erases, still this change makes it
    much easier to switch the GL-MV1000 boot media without an UART cable
    connection.
    
    Thanks to @robimarko and @hacks for the precious hints and suggesting a
    better approach.
    
    Signed-off-by: Enrico Mioso <mrkiko.rs at gmail.com>
---
 target/linux/mvebu/config-6.6 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/mvebu/config-6.6 b/target/linux/mvebu/config-6.6
index 88e5fff4d9..a4572d8a89 100644
--- a/target/linux/mvebu/config-6.6
+++ b/target/linux/mvebu/config-6.6
@@ -270,6 +270,7 @@ CONFIG_MTD_NAND_ECC_SW_HAMMING=y
 CONFIG_MTD_NAND_MARVELL=y
 CONFIG_MTD_RAW_NAND=y
 CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPI_NOR_USE_VARIABLE_ERASE=y
 CONFIG_MTD_SPLIT_FIRMWARE=y
 CONFIG_MTD_UBI=y
 CONFIG_MTD_UBI_BEB_LIMIT=20