Revert "package/cmake: bump version to 3.10.0 and add license hash"

This reverts commit 65205c2425bccb7039ca0e2caffb7c64c26805f7, which
causes too many build failures of host-cmake due to the use by CMake
of the emplace_hint C++11 method.

Fixes:

  http://autobuild.buildroot.net/results/90d38169b50c29842ecc1752c2abf66d4c2d9e63/

This new dependency of host-cmake will have to be taken care of in a
more complete patch.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/cmake/cmake.hash

@@ -1,3 +1,2 @@
-# From http://www.cmake.org/files/v3.10/cmake-3.10.0-SHA-256.txt
-sha256 b3345c17609ea0f039960ef470aa099de9942135990930a57c14575aae884987  cmake-3.10.0.tar.gz
-sha256 ccf2c6d4468919c8c26a764b9ed8fde349f0d298335524568b346b9bdcf56e1f  Copyright.txt
+# From http://www.cmake.org/files/v3.8/cmake-3.8.2-SHA-256.txt
+sha256 da3072794eb4c09f2d782fcee043847b99bb4cf8d4573978d9b2024214d6e92d  cmake-3.8.2.tar.gz

package/cmake/cmake.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-CMAKE_VERSION_MAJOR = 3.10
-CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).0
+CMAKE_VERSION_MAJOR = 3.8
+CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).2
 CMAKE_SITE = https://cmake.org/files/v$(CMAKE_VERSION_MAJOR)
 CMAKE_LICENSE = BSD-3-Clause
 CMAKE_LICENSE_FILES = Copyright.txt