package/cmake bump to version 3.9.6

This is the latest cmake that doesn't require a c++11 toolchain.

The hash of the license file is changed due to the addition of one
more contributor in upstream commit
a3388900f88e2e576d17f635bbf3a7ed257804a3.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/cmake/cmake.hash

@@ -1,5 +1,5 @@
-# From http://www.cmake.org/files/v3.8/cmake-3.8.2-SHA-256.txt
-sha256 da3072794eb4c09f2d782fcee043847b99bb4cf8d4573978d9b2024214d6e92d  cmake-3.8.2.tar.gz
+# From https://cmake.org/files/v3.9/cmake-3.9.6-SHA-256.txt
+sha256 7410851a783a41b521214ad987bb534a7e4a65e059651a2514e6ebfc8f46b218  cmake-3.9.6.tar.gz
 
 # Locally calculated
-sha256 af3030e1bf1af2f534430fdfe3cfc5a617966648a2a7f0c06a631adc92be1e5f  Copyright.txt
+sha256 9d8604f7afc5564ceb9705ba121f5fba2782ce18d92902f3c6ed338228372170  Copyright.txt

package/cmake/cmake.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-CMAKE_VERSION_MAJOR = 3.8
-CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).2
+CMAKE_VERSION_MAJOR = 3.9
+CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).6
 CMAKE_SITE = https://cmake.org/files/v$(CMAKE_VERSION_MAJOR)
 CMAKE_LICENSE = BSD-3-Clause
 CMAKE_LICENSE_FILES = Copyright.txt