package/llvm: bump to 8.0.0

The license file hash changed due to a copyright year update:

-Copyright (c) 2003-2018 University of Illinois at Urbana-Champaign.
+Copyright (c) 2003-2019 University of Illinois at Urbana-Champaign.

Signed-off-by: Valentin Korenblit <valentinkorenblit@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/llvm/llvm.hash

@@ -1,3 +1,3 @@
 # locally calculated
-sha256 a38dfc4db47102ec79dcc2aa61e93722c5f6f06f0a961073bd84b78fb949419b llvm-7.0.1.src.tar.xz
-sha256 0303dfeaac87b80d2d1e543aa38d5be77b0eac93c3d04fe7e3c8eaa71a778667 LICENSE.TXT
+sha256 8872be1b12c61450cacc82b3d153eab02be2546ef34fa3580ed14137bb26224c llvm-8.0.0.src.tar.xz
+sha256 24b67da19b1422a819395738cb83ea34eee3fdce52870b0d1758524ba1615069 LICENSE.TXT

package/llvm/llvm.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LLVM_VERSION = 7.0.1
+LLVM_VERSION = 8.0.0
 LLVM_SITE = http://llvm.org/releases/$(LLVM_VERSION)
 LLVM_SOURCE = llvm-$(LLVM_VERSION).src.tar.xz
 LLVM_LICENSE = NCSA