linux-postmarketos-qcom-milos 7.2.0-r103: enable pstore (ramoops console/pmsg)

The FP6 has warm-reset itself at USB-C cable events and right after the
ADSP comes up with a charger attached, leaving nothing in the journal.
The kernel now carries a 4 MiB ramoops region (milos-linux adsp-recovery,
DTS node at 0xe2500000); build the pstore core, the ram backend and the
console + pmsg front ends in, so the previous boot's console and the
initramfs stage log survive a reset into /var/lib/systemd/pstore.

Verified on the dev phone 2026-09-15: records survive a PS_HOLD reset;
systemd-pstore archives them at the next boot.

aports/device/linux-postmarketos-qcom-milos/APKBUILD

@@ -8,7 +8,7 @@ _flavor="postmarketos-qcom-milos"
 pkgname=linux-$_flavor
 pkgver=7.2.0
 # always sorts above the upstream aport (r0..r99)
-pkgrel=102
+pkgrel=103
 pkgdesc="Milos mainline kernel + Catcrafts FP6 bring-up carries (combined-stable)"
 arch="aarch64"
 _carch="arm64"

aports/device/linux-postmarketos-qcom-milos/config-postmarketos-qcom-milos.aarch64

@@ -1789,6 +1789,7 @@ CONFIG_ARM_SCMI_TRANSPORT_OPTEE=y
 # EFI (Extensible Firmware Interface) Support
 #
 CONFIG_EFI_ESRT=y
+# CONFIG_EFI_VARS_PSTORE is not set
 CONFIG_EFI_PARAMS_FROM_FDT=y
 CONFIG_EFI_RUNTIME_WRAPPERS=y
 CONFIG_EFI_GENERIC_STUB=y
@@ -7449,7 +7450,14 @@ CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
 # CONFIG_QNX4FS_FS is not set
 # CONFIG_QNX6FS_FS is not set
 # CONFIG_ROMFS_FS is not set
-# CONFIG_PSTORE is not set
+CONFIG_PSTORE=y
+CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
+CONFIG_PSTORE_COMPRESS=y
+CONFIG_PSTORE_CONSOLE=y
+CONFIG_PSTORE_PMSG=y
+# CONFIG_PSTORE_FTRACE is not set
+CONFIG_PSTORE_RAM=y
+# CONFIG_PSTORE_BLK is not set
 # CONFIG_UFS_FS is not set
 CONFIG_EROFS_FS=m
 # CONFIG_EROFS_FS_DEBUG is not set
@@ -7963,6 +7971,9 @@ CONFIG_XZ_DEC_BCJ=y
 CONFIG_DECOMPRESS_GZIP=y
 CONFIG_DECOMPRESS_ZSTD=y
 CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_REED_SOLOMON=y
+CONFIG_REED_SOLOMON_ENC8=y
+CONFIG_REED_SOLOMON_DEC8=y
 CONFIG_INTERVAL_TREE=y
 CONFIG_XARRAY_MULTI=y
 CONFIG_ASSOCIATIVE_ARRAY=y