camera: enable the FP6 ultra-wide pipeline (kernel config + patched libcamera)

Kernel config: CONFIG_VIDEO_OV13B10=m + CONFIG_VIDEO_DW9714=m — the camss
core, CAMCC and CCI were already enabled; the sensor and VCM drivers were
the only missing pieces. The camera carries themselves land via
milos-linux combined-stable (merge of the 'camera' topic branch,
nondescriptpointer's 5 patches, authorship preserved).

libcamera: new temp/ aport overriding pmOS 99990.7.2-r1 with -r2, adding
nondescriptpointer's OV13B10 sensor helper (gain = code/128, enables the
software-ISP AGC/AWB) and sensor properties patches on top of the pmOS
0.7.2 APKBUILD. Patch sha512s re-recorded from the actual files (his
APKBUILD diff carried stale hashes); all four patches verified to apply
against the v0.7.2 tarball.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

aports/temp/libcamera/imx376.yaml

@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: CC0-1.0
+%YAML 1.1
+---
+version: 1
+algorithms:
+  - BlackLevel:
+      blackLevel: 4096
+  - Awb:
+  - Ccm:
+      # copied from s5kjn1.yaml
+      ccms:
+        - ct: 2676
+          ccm: [ 2.02152, -0.41859, -0.60292,
+                -0.59481,  2.21509, -0.62029,
+                -0.44029, -1.16865,  2.60894 ]
+        - ct: 2710
+          ccm: [ 2.01597, -0.46478, -0.55119,
+                -0.59047,  2.14717, -0.55671,
+                -0.40793, -1.19946,  2.60739 ]
+        - ct: 2719
+          ccm: [ 1.99894, -0.41626, -0.58268,
+                -0.59321,  2.18167, -0.58846,
+                -0.42518, -1.21384,  2.63903 ]
+        - ct: 2867
+          ccm: [ 1.95177, -0.35904, -0.59274,
+                -0.44282,  1.97362, -0.53079,
+                -0.49059, -1.35379,  2.84439 ]
+        - ct: 3474
+          ccm: [ 1.97712, -0.60854, -0.36858,
+                -0.47723,  1.91142, -0.43418,
+                -0.23092, -0.72246,  1.95339 ]
+        - ct: 3761
+          ccm: [ 2.29903, -0.94652, -0.35251,
+                -0.51661,  1.90311, -0.38651,
+                -0.25114, -0.67501,  1.92615 ]
+        - ct: 6890
+          ccm: [ 1.93867, -0.67486, -0.26381,
+                -0.43049,  2.00702, -0.57652,
+                -0.15696, -0.51345,  1.67041 ]
+  - Adjust:
+  - Agc:
+...