UPSTREAM: drivers/intel/gma/gma.ads: Uniformize casing

Use lowercase `port` in both the spec and the body.

BUG=none
BRANCH=none
TEST=none

Change-Id: If6c51c0d1100fe23336616e746839ef59647ccb6
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: 54d59ef7b772374ae9e30826a2e85b9fccafa2e4
Original-Change-Id: I3d1e2abe03eedcaf57716af444a3e3b8a61b60d4
Original-Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Original-Reviewed-on: https://review.coreboot.org/c/coreboot/+/51146
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2739717
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Commit-Queue: Patrick Georgi <pgeorgi@chromium.org>
diff --git a/src/drivers/intel/gma/gma.ads b/src/drivers/intel/gma/gma.ads
index e83fff4..d264960 100644
--- a/src/drivers/intel/gma/gma.ads
+++ b/src/drivers/intel/gma/gma.ads
@@ -8,7 +8,7 @@
 
    function read_edid
      (raw_edid :    out HW.GFX.EDID.Raw_EDID_Data;
-      Port     : in     Interfaces.C.int)
+      port     : in     Interfaces.C.int)
       return Interfaces.C.int
    with
       Export, Convention => C, External_Name => "gma_read_edid";