package/cmake: bump version to 3.15.5

Release notes:
https://blog.kitware.com/cmake-3-15-5-available-for-download/

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/cmake/cmake.hash

@@ -1,5 +1,5 @@
-# From https://cmake.org/files/v3.15/cmake-3.15.4-SHA-256.txt
-sha256 8a211589ea21374e49b25fc1fc170e2d5c7462b795f1b29c84dd0e984301ed7a  cmake-3.15.4.tar.gz
+# From https://cmake.org/files/v3.15/cmake-3.15.5-SHA-256.txt
+sha256 fbdd7cef15c0ced06bb13024bfda0ecc0dedbcaaaa6b8a5d368c75255243beb4  cmake-3.15.5.tar.gz
 
 # Locally calculated
 sha256 dc628fb936a5d229296d42083f9a8218aa32204c016919e784404c9ec58776e9  Copyright.txt

package/cmake/cmake.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 CMAKE_VERSION_MAJOR = 3.15
-CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).4
+CMAKE_VERSION = $(CMAKE_VERSION_MAJOR).5
 CMAKE_SITE = https://cmake.org/files/v$(CMAKE_VERSION_MAJOR)
 CMAKE_LICENSE = BSD-3-Clause
 CMAKE_LICENSE_FILES = Copyright.txt