github: workflows: add ADC test and sample builds to MSPM33 workflow

Add adc_dt, adc_sequence, adc_api, and adc_error_cases builds to
dev_mspm33_build.yml for comprehensive ADC validation on LP_MSPM33C321A.

Signed-off-by: Aman Lachhiramka <a-lachhiramka@ti.com>

Author: Aman-Lachhiramka-ti

.github/workflows/dev_mspm33_build.yml

@@ -137,3 +137,31 @@ jobs:
           cd ~/zephyrproject/zephyr
           source ~/zephyrproject/zephyr/zephyr-env.sh
           west build -p always -b lp_mspm33c321a tests/drivers/dma/loop_transfer
+
+      - name: Build ADC DT Sample
+        run: |
+          source ~/zephyrproject/.venv/bin/activate
+          cd ~/zephyrproject/zephyr
+          source ~/zephyrproject/zephyr/zephyr-env.sh
+          west build -p always -b lp_mspm33c321a samples/drivers/adc/adc_dt
+
+      - name: Build ADC Sequence Sample
+        run: |
+          source ~/zephyrproject/.venv/bin/activate
+          cd ~/zephyrproject/zephyr
+          source ~/zephyrproject/zephyr/zephyr-env.sh
+          west build -p always -b lp_mspm33c321a samples/drivers/adc/adc_sequence
+
+      - name: Build ADC API Test
+        run: |
+          source ~/zephyrproject/.venv/bin/activate
+          cd ~/zephyrproject/zephyr
+          source ~/zephyrproject/zephyr/zephyr-env.sh
+          west build -p always -b lp_mspm33c321a tests/drivers/adc/adc_api
+
+      - name: Build ADC Error Cases Test
+        run: |
+          source ~/zephyrproject/.venv/bin/activate
+          cd ~/zephyrproject/zephyr
+          source ~/zephyrproject/zephyr/zephyr-env.sh
+          west build -p always -b lp_mspm33c321a tests/drivers/adc/adc_error_cases