staging: rtl8723bs: Add missing include <linux/of.h> to fix compile error
As reported by Stephen Rothwell when merging staging-next,
drivers/staging/rtl8723bs/core/rtw_ieee80211.c does not compile due
to of_get_property not being declared.
Explicitly include <linux/of.h> to fix this compile error.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>