freedreno/ci: Merge a750-piglit-cl and a750-gl

The actual runtime of `a750-piglit-cl` was under 2 minutes.

Signed-off-by: Valentine Burley <valentine.burley@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35906>

src/freedreno/ci/deqp-freedreno-a750-piglit-cl.toml

@@ -1,8 +0,0 @@
-[[piglit]]
-piglit_folder = "/piglit"
-profile = "cl"
-process_isolation = true
-skips = ["install/freedreno-a6xx-skips.txt"]
-  [piglit.env]
-  RUSTICL_ENABLE = "msm"
-

src/freedreno/ci/deqp-freedreno-a750.toml

@@ -59,3 +59,11 @@ deqp_args = [
     "--deqp-surface-type=pbuffer", "--deqp-visibility=hidden",
     "--deqp-gl-config-name=rgba8888d24s8ms0",
 ]
+
+[[piglit]]
+piglit_folder = "/piglit"
+profile = "cl"
+process_isolation = true
+skips = ["install/freedreno-a6xx-skips.txt"]
+  [piglit.env]
+  RUSTICL_ENABLE = "msm"

src/freedreno/ci/gitlab-ci.yml

@@ -437,18 +437,7 @@ a750-angle:
     DEQP_SUITE: tu-angle
     HWCI_TEST_SCRIPT: ./install/deqp-runner.sh
 
-a750-gl:
-  extends:
-    - .ci-tron-arm64-test-gl
-    - .a750-mupuf
-    - .valve-freedreno-manual-rules
-  timeout: 30m  # base runtime 11min total, 8min of testing
-  variables:
-    CI_TRON_TIMEOUT__OVERALL__MINUTES: 25
-    HWCI_TEST_SCRIPT: install/deqp-runner.sh
-    DEQP_SUITE: freedreno-a750
-
-a750-piglit-cl:
+a750-gl-cl:
   extends:
     - .ci-tron-arm64-test-gl
     - .test-piglit
@@ -457,11 +446,12 @@ a750-piglit-cl:
   rules:
     - !reference [.valve-freedreno-manual-rules, rules]
     - !reference [.rusticl-manual-rules, rules]
+  timeout: 30m  # base runtime 11min total, 8min of testing
   variables:
-    DEQP_SUITE: freedreno-a750-piglit-cl
+    CI_TRON_TIMEOUT__OVERALL__MINUTES: 25
     HWCI_START_WESTON: 1
-    HWCI_TEST_SCRIPT: ./install/deqp-runner.sh
-    VK_DRIVER: freedreno
+    HWCI_TEST_SCRIPT: install/deqp-runner.sh
+    DEQP_SUITE: freedreno-a750
 
 a750-vk:
   extends: