support: move patch-kernel.sh and rename it

The name "patch-kernel.sh" is a bit stupid, since this script is used
to patch everything in Buildroot, not only kernel trees.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

support/scripts/apply-patches.sh

@@ -0,0 +1,66 @@
+#! /bin/bash
+# A little script I whipped up to make it easy to
+# patch source trees and have sane error handling
+# -Erik
+#
+# (c) 2002 Erik Andersen <andersen@codepoet.org>
+
+# Set directories from arguments, or use defaults.
+targetdir=${1-.}
+patchdir=${2-../kernel-patches}
+shift 2
+patchpattern=${@-*}
+
+if [ ! -d "${targetdir}" ] ; then
+    echo "Aborting.  '${targetdir}' is not a directory."
+    exit 1
+fi
+if [ ! -d "${patchdir}" ] ; then
+    echo "Aborting.  '${patchdir}' is not a directory."
+    exit 1
+fi
+    
+for i in `cd ${patchdir}; ls -d ${patchpattern} 2> /dev/null` ; do 
+    apply="patch -p1 -E -d"
+    uncomp_parm=""
+    if [ -d "${patchdir}/$i" ] ; then
+	type="directory overlay"
+	uncomp="tar cf - --exclude=.svn --no-anchored -C"
+	uncomp_parm="."
+	apply="tar xvf - -C"
+    else case "$i" in
+	*.gz)
+	type="gzip"; uncomp="gunzip -dc"; ;; 
+	*.bz)
+	type="bzip"; uncomp="bunzip -dc"; ;; 
+	*.bz2)
+	type="bzip2"; uncomp="bunzip2 -dc"; ;; 
+	*.zip)
+	type="zip"; uncomp="unzip -d"; ;; 
+	*.Z)
+	type="compress"; uncomp="uncompress -c"; ;; 
+	*.tgz)
+	type="tar gzip"; uncomp="gunzip -dc"; apply="tar xvf - -C"; ;; 
+	*.tar)
+	type="tar"; uncomp="cat"; apply="tar xvf - -C"; ;; 
+	*)
+	type="plaintext"; uncomp="cat"; ;; 
+    esac fi
+    echo ""
+    echo "Applying ${i} using ${type}: " 
+	echo ${i} | cat >> ${targetdir}/.applied_patches_list
+    ${uncomp} ${patchdir}/${i} ${uncomp_parm} | ${apply} ${targetdir} 
+    if [ $? != 0 ] ; then
+        echo "Patch failed!  Please fix $i!"
+	exit 1
+    fi
+done
+
+# Check for rejects...
+if [ "`find $targetdir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ] ; then
+    echo "Aborting.  Reject files found."
+    exit 1
+fi
+
+# Remove backup files
+find $targetdir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;