skiroot_defconfig: Remove obsolete drivers

Reduce the initramfs size in ~300 KBs by removing old or obsolete
device drivers:
   * Chelsio T3 and T4 and QLogic NetXtreme II iSCSI support - these
     were probably added in error since we don't have iscsi userspace
     even configured
   * Alteon AceNIC/3Com 3C985/NetGear GA620 Gigabit, QLogic bnx2 & CNIC
     support, Myricom Myri-10G & Neterion (Exar) Xframe 10Gb - these
     are apparently never used or obsolete
   * Solarflare NIC adapter support - not being used

Upstream Status: submitted

Signed-off-by: Klaus Heinrich Kiwi <klaus@linux.vnet.ibm.com>
diff --git a/openpower/configs/linux/skiroot_defconfig b/openpower/configs/linux/skiroot_defconfig
index 02a3ea7..41688c7 100644
--- a/openpower/configs/linux/skiroot_defconfig
+++ b/openpower/configs/linux/skiroot_defconfig
@@ -89,9 +89,6 @@
 CONFIG_SCSI_CONSTANTS=y
 CONFIG_SCSI_SCAN_ASYNC=y
 CONFIG_SCSI_FC_ATTRS=y
-CONFIG_SCSI_CXGB3_ISCSI=m
-CONFIG_SCSI_CXGB4_ISCSI=m
-CONFIG_SCSI_BNX2_ISCSI=m
 CONFIG_SCSI_AACRAID=m
 CONFIG_MEGARAID_NEWGEN=y
 CONFIG_MEGARAID_MM=m
@@ -102,7 +99,6 @@
 # CONFIG_SCSI_IPR_TRACE is not set
 # CONFIG_SCSI_IPR_DUMP is not set
 CONFIG_SCSI_QLA_FC=m
-CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_LPFC=m
 CONFIG_SCSI_VIRTIO=m
 CONFIG_SCSI_DH=y
@@ -125,12 +121,11 @@
 CONFIG_DM_MIRROR=m
 CONFIG_DM_ZERO=m
 CONFIG_DM_MULTIPATH=m
+CONFIG_NETDEVICES=y
 # CONFIG_NET_VENDOR_3COM is not set
 # CONFIG_NET_VENDOR_ADAPTEC is not set
 # CONFIG_NET_VENDOR_AGERE is not set
 # CONFIG_NET_VENDOR_ALACRITECH is not set
-CONFIG_ACENIC=m
-CONFIG_ACENIC_OMIT_TIGON_I=y
 # CONFIG_NET_VENDOR_AMAZON is not set
 # CONFIG_NET_VENDOR_AMD is not set
 # CONFIG_NET_VENDOR_AQUANTIA is not set
@@ -143,6 +138,8 @@
 # CONFIG_NET_VENDOR_CADENCE is not set
 # CONFIG_NET_VENDOR_CAVIUM is not set
 CONFIG_CHELSIO_T1=m
+CONFIG_CHELSIO_T3=m
+CONFIG_CHELSIO_T4=m
 # CONFIG_NET_VENDOR_CISCO is not set
 # CONFIG_NET_VENDOR_CORTINA is not set
 # CONFIG_NET_VENDOR_DEC is not set
@@ -164,9 +161,7 @@
 # CONFIG_MLX5_EN_RXNFC is not set
 # CONFIG_NET_VENDOR_MICREL is not set
 # CONFIG_NET_VENDOR_MICROSEMI is not set
-CONFIG_MYRI10GE=m
 # CONFIG_NET_VENDOR_NATSEMI is not set
-CONFIG_S2IO=m
 # CONFIG_NET_VENDOR_NETRONOME is not set
 # CONFIG_NET_VENDOR_NI is not set
 # CONFIG_NET_VENDOR_NVIDIA is not set
@@ -182,7 +177,6 @@
 # CONFIG_NET_VENDOR_ROCKER is not set
 # CONFIG_NET_VENDOR_SAMSUNG is not set
 # CONFIG_NET_VENDOR_SEEQ is not set
-CONFIG_SFC=m
 # CONFIG_NET_VENDOR_SILAN is not set
 # CONFIG_NET_VENDOR_SIS is not set
 # CONFIG_NET_VENDOR_SMSC is not set
@@ -216,7 +210,6 @@
 CONFIG_I2C_CHARDEV=y
 # CONFIG_I2C_HELPER_AUTO is not set
 CONFIG_I2C_ALGOBIT=y
-CONFIG_I2C_OPAL=y
 CONFIG_PPS=y
 CONFIG_SENSORS_IBMPOWERNV=m
 CONFIG_DRM=m