CI: re-enable dtb path check (MR 3801)

.ci/grep.sh

@@ -16,9 +16,8 @@ if grep -qr '(CHANGEME!)' *; then
 fi
 
 # DTBs installed to /usr/share/db
-# FIXME: doesn't pass currently, fix it and enable it afterwards
-# if grep -r 'INSTALL_DTBS_PATH="$pkgdir"/usr/share/dtb'; then
-# 	echo 'Please do not install dtbs to /usr/share/dtb!'
-# 	echo 'Unless you have a good reason not to, please put them in /boot/dtbs'
-# 	exit 1
-# fi
+if grep -r 'INSTALL_DTBS_PATH="$pkgdir"/usr/share/dtb'; then
+	echo 'Please do not install dtbs to /usr/share/dtb!'
+	echo 'Unless you have a good reason not to, please put them in /boot/dtbs'
+	exit 1
+fi