[][kernel][common][eth][Fix 10GBASE-T SFP+ IOT issue]

[Description]
Fix 10GBASE-T SFP+ IOT issue.
    - Backport MDIO I2C ROLLBALL mode
    - Support OEM TNBYV02-C0X-C3 SFP+ module
    - Support JESS-LINK P60000BBC001-1 module
    - Fix panic issue for Marvell 10G PHY interface down/up

If without this patch, SFP framework might fail to attach Ethernet
PHY driver.

[Release-log]
N/A


Change-Id: I3b5cc8a4cc1da988b5cc3dd02a6ae688792403c2
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6966161
diff --git a/target/linux/mediatek/mt7988/config-5.4 b/target/linux/mediatek/mt7988/config-5.4
index c78b0b7..2ae66c3 100644
--- a/target/linux/mediatek/mt7988/config-5.4
+++ b/target/linux/mediatek/mt7988/config-5.4
@@ -261,6 +261,7 @@
 CONFIG_LZO_DECOMPRESS=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_MAGIC_SYSRQ_SERIAL=y
+CONFIG_MARVELL_10G_PHY=y
 CONFIG_MAXLINEAR_GPHY=y
 CONFIG_MD=y
 CONFIG_MDIO_BUS=y