Fixed date in config. Enable creation of built binary toolchain optio…

…n in config for later reuse.

config-nstorm-bananapi-bpi-r4

@@ -12,7 +12,6 @@ CONFIG_BPF_TOOLCHAIN_BUILD_LLVM=y
 # CONFIG_BPF_TOOLCHAIN_NONE is not set
 CONFIG_BUILD_PATENTED=y
 CONFIG_BUSYBOX_CONFIG_ASH_HELP=y
-CONFIG_BUSYBOX_CONFIG_ASH_SLEEP=y
 CONFIG_BUSYBOX_CONFIG_BLKDISCARD=y
 CONFIG_BUSYBOX_CONFIG_BLKID=y
 CONFIG_BUSYBOX_CONFIG_BUNZIP2=y
@@ -174,6 +173,7 @@ CONFIG_LIBIIO_NETWORK_BACKEND=y
 CONFIG_LIBIIO_XML_BACKEND=y
 CONFIG_LUCI_LANG_ru=y
 CONFIG_LUCI_SRCDIET=y
+CONFIG_MAKE_TOOLCHAIN=y
 CONFIG_MBEDTLS_CCM_C=y
 CONFIG_MBEDTLS_CIPHER_MODE_OFB=y
 CONFIG_MBEDTLS_CIPHER_MODE_XTS=y