iw: correct license name

iw license is ISC.

Reviewed-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/iw/iw.mk

@@ -7,7 +7,7 @@
 IW_VERSION = 4.7
 IW_SOURCE = iw-$(IW_VERSION).tar.xz
 IW_SITE = $(BR2_KERNEL_MIRROR)/software/network/iw
-IW_LICENSE = iw license
+IW_LICENSE = ISC
 IW_LICENSE_FILES = COPYING
 IW_DEPENDENCIES = host-pkgconf libnl
 IW_MAKE_OPTS = CC="$(TARGET_CC)" LD="$(TARGET_LD)" LDFLAGS="$(TARGET_LDFLAGS)"