bcm53xx: refresh kernel config

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

target/linux/bcm53xx/config-4.4

@@ -280,10 +280,8 @@ CONFIG_SERIAL_8250_FSL=y
 # CONFIG_SERIAL_AMBA_PL010 is not set
 # CONFIG_SERIAL_AMBA_PL011 is not set
 CONFIG_SERIAL_OF_PLATFORM=y
-# CONFIG_SG_SPLIT is not set
 CONFIG_SMP=y
 CONFIG_SMP_ON_UP=y
-# CONFIG_SOC_BRCMSTB is not set
 CONFIG_SPARSE_IRQ=y
 CONFIG_SPI=y
 CONFIG_SPI_BCM53XX=y
@@ -291,8 +289,6 @@ CONFIG_SPI_BITBANG=y
 CONFIG_SPI_GPIO=y
 CONFIG_SPI_MASTER=y
 CONFIG_SRCU=y
-CONFIG_STOP_MACHINE=y
-# CONFIG_SUNXI_SRAM is not set
 CONFIG_SWCONFIG=y
 CONFIG_SWIOTLB=y
 CONFIG_SWP_EMULATE=y
@@ -300,7 +296,6 @@ CONFIG_SYS_SUPPORTS_APM_EMULATION=y
 # CONFIG_THUMB2_KERNEL is not set
 CONFIG_TICK_CPU_ACCOUNTING=y
 CONFIG_TREE_RCU=y
-# CONFIG_UBIFS_ATIME_SUPPORT is not set
 CONFIG_UBIFS_FS=y
 # CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
 CONFIG_UBIFS_FS_LZO=y