gnu: linux-libre: Add version 5.3.1.

* gnu/packages/linux.scm (linux-libre-5.3-version)
(linux-libre-5.3-pristine-source, linux-libre-5.3-source)
(linux-libre-headers-5.3, linux-libre-5.3): New public variables.
* gnu/packages/aux-files/linux-libre/5.3-arm.conf,
gnu/packages/aux-files/linux-libre/5.3-arm-veyron.conf,
gnu/packages/aux-files/linux-libre/5.3-arm64.conf,
gnu/packages/aux-files/linux-libre/5.3-i686.conf,
gnu/packages/aux-files/linux-libre/5.3-x86_64.conf: New files.
* Makefile.am (AUX_FILES): Add them.

Makefile.am

@@ -316,6 +316,11 @@ dist_noinst_DATA =				\
 AUX_FILES =						\
   gnu/packages/aux-files/chromium/master-preferences.json		\
   gnu/packages/aux-files/emacs/guix-emacs.el		\
+  gnu/packages/aux-files/linux-libre/5.3-arm.conf	\
+  gnu/packages/aux-files/linux-libre/5.3-arm-veyron.conf       \
+  gnu/packages/aux-files/linux-libre/5.3-arm64.conf	\
+  gnu/packages/aux-files/linux-libre/5.3-i686.conf	\
+  gnu/packages/aux-files/linux-libre/5.3-x86_64.conf	\
   gnu/packages/aux-files/linux-libre/5.2-arm.conf	\
   gnu/packages/aux-files/linux-libre/5.2-arm-veyron.conf       \
   gnu/packages/aux-files/linux-libre/5.2-arm64.conf	\

gnu/packages/linux.scm

@@ -181,6 +181,12 @@ defconfig.  Return the appropriate make target if applicable, otherwise return
                               "deblob-check"))
           (sha256 deblob-check-hash))))
 
+(define deblob-scripts-5.3
+  (linux-libre-deblob-scripts
+   "5.3.1"
+   (base32 "15n09zq38d69y1wl28s3nasf3377qp2yil5b887zpqrm00dif7i4")
+   (base32 "1av9ykv714cnl0clls8rhwa8rwflz6ivg17gharj1x650qp6vnw3")))
+
 (define deblob-scripts-5.2
   (linux-libre-deblob-scripts
    "5.2.17"
@@ -351,6 +357,14 @@ corresponding UPSTREAM-SOURCE (an origin), using the given DEBLOB-SCRIPTS."
                         "linux-" version ".tar.xz"))
     (sha256 hash)))
 
+(define-public linux-libre-5.3-version "5.3.1")
+(define-public linux-libre-5.3-pristine-source
+  (let ((version linux-libre-5.3-version)
+        (hash (base32 "0n7qjakglzh6rpbjdjqr4fgp8f8fd3qgb5as0hfj25nk16lvb44q")))
+   (make-linux-libre-source version
+                            (%upstream-linux-source version hash)
+                            deblob-scripts-5.3)))
+
 (define-public linux-libre-5.2-version "5.2.17")
 (define-public linux-libre-5.2-pristine-source
   (let ((version linux-libre-5.2-version)
@@ -419,6 +433,11 @@ corresponding UPSTREAM-SOURCE (an origin), using the given DEBLOB-SCRIPTS."
     (patches (append (origin-patches source)
                      patches))))
 
+(define-public linux-libre-5.3-source
+  (source-with-patches linux-libre-5.3-pristine-source
+                       (list %boot-logo-patch
+                             %linux-libre-arm-export-__sync_icache_dcache-patch)))
+
 (define-public linux-libre-5.2-source
   (source-with-patches linux-libre-5.2-pristine-source
                        (list %boot-logo-patch
@@ -511,6 +530,10 @@ corresponding UPSTREAM-SOURCE (an origin), using the given DEBLOB-SCRIPTS."
     (description "Headers of the Linux-Libre kernel.")
     (license license:gpl2)))
 
+(define-public linux-libre-headers-5.3
+  (make-linux-libre-headers* linux-libre-5.3-version
+                             linux-libre-5.3-source))
+
 (define-public linux-libre-headers-5.2
   (make-linux-libre-headers* linux-libre-5.2-version
                              linux-libre-5.2-source))
@@ -756,6 +779,12 @@ It has been modified to remove all non-free binary blobs.")
 ;;; Generic kernel packages.
 ;;;
 
+(define-public linux-libre-5.3
+  (make-linux-libre* linux-libre-5.3-version
+                     linux-libre-5.3-source
+                     '("x86_64-linux" "i686-linux" "armhf-linux" "aarch64-linux")
+                     #:configuration-file kernel-config))
+
 (define-public linux-libre-5.2
   (make-linux-libre* linux-libre-5.2-version
                      linux-libre-5.2-source