libllvm: fix file conflicts

Unpacking llvm (11.0.0) over (10.0.1-4) ...
dpkg: error processing archive /data/data/com.termux/files/usr/tmp/apt-dpkg-install-3GHYjz/0-llvm_11.0.0_aarch64.deb (--unpack):
 trying to overwrite '/data/data/com.termux/files/usr/bin/dsymutil', which is also in package libllvm 10.0.1-4
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)

and

Preparing to unpack .../5-clang_11.0.0_aarch64.deb ...
Unpacking clang (11.0.0) over (10.0.1-4) ...
dpkg: error processing archive /data/data/com.termux/files/usr/tmp/apt-dpkg-install-3GHYjz/5-clang_11.0.0_aarch64.deb (--unpack):
 trying to overwrite '/data/data/com.termux/files/usr/bin/diagtool', which is also in package libllvm 10.0.1-4
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)

packages/libllvm/build.sh

@@ -3,6 +3,7 @@ TERMUX_PKG_DESCRIPTION="Modular compiler and toolchain technologies library"
 TERMUX_PKG_LICENSE="NCSA"
 TERMUX_PKG_MAINTAINER="@buttaface"
 TERMUX_PKG_VERSION=11.0.0
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SHA256=b7b639fc675fa1c86dd6d0bc32267be9eb34451748d2efd03f674b773000e92b
 TERMUX_PKG_SRCURL=https://github.com/llvm/llvm-project/releases/download/llvmorg-$TERMUX_PKG_VERSION/llvm-project-$TERMUX_PKG_VERSION.tar.xz
 TERMUX_PKG_HOSTBUILD=true

packages/libllvm/clang.subpackage.sh

@@ -29,5 +29,5 @@ share/man/man1/clang.1.gz
 share/man/man1/scan-*
 "
 TERMUX_SUBPKG_DESCRIPTION="C language frontend for LLVM"
-TERMUX_SUBPKG_BREAKS="libllvm (<< 10.0.0), clangd"
-TERMUX_SUBPKG_REPLACES="clangd"
+TERMUX_SUBPKG_BREAKS="libllvm (<< 11.0.0-1), clangd"
+TERMUX_SUBPKG_REPLACES="libllvm (<< 11.0.0-1), clangd"

packages/libllvm/llvm.subpackage.sh

@@ -20,3 +20,5 @@ share/man/man1/dsymutil.1.gz
 share/man/man1/tblgen.1.gz
 "
 TERMUX_SUBPKG_DESCRIPTION="LLVM modular compiler and toolchain executables"
+TERMUX_SUBPKG_BREAKS="libllvm (<< 11.0.0-1)"
+TERMUX_SUBPKG_REPLACES="libllvm (<< 11.0.0-1)"