ci,build: apply patches via explicit variable

Each CI (Travis-CI, Github Actions, Azure Pipelines) defines their own
environment variable set.
Instead of checking for each CI, define our own env var to apply the
patches for the DTB build test.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>

Author: commodo

.github/workflows/build.yml

@@ -38,6 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       BUILD_TYPE: dtb_build_test
+      APPLY_DTB_BUILD_PATCHES: true
       DTS_FILES: "arch/arm/boot/dts/zynq-*.dts
                   arch/arm/boot/dts/socfpga_*.dts
                   arch/arm64/boot/dts/xilinx/zynqmp-*.dts

.travis.yml.bak

@@ -20,6 +20,7 @@ matrix:
     - checkpatch: 1
       env: BUILD_TYPE=checkpatch DO_NOT_DOCKERIZE=1
     - env: BUILD_TYPE=dtb_build_test DO_NOT_DOCKERIZE=1
+           APPLY_DTB_BUILD_PATCHES="true"
            DTS_FILES="arch/arm/boot/dts/zynq-*.dts
                       arch/arm/boot/dts/socfpga_*.dts
                       arch/arm64/boot/dts/xilinx/zynqmp-*.dts

ci/travis/run-build.sh

@@ -277,7 +277,7 @@ build_dtb_build_test() {
 	local err=0
 	local last_arch
 
-	if [ "$TRAVIS" = "true" ] || [ "$CI" = "true" ] ; then
+	if [ "$APPLY_DTB_BUILD_PATCHES" = "true" ] ; then
 		for patch in $(ls ci/travis/*.patch | sort) ; do
 			patch -p1 < $patch
 		done