pkg/arch: Use `y` for CONFIG_ASHMEM

The CONFIG_ASHMEM option cannot be set to `m` (as wrongly described in
the Arch Wiki). Instead set it to `y` as done in the `-zen` kernel.

pkg/arch/kernel/PKGBUILD

@@ -47,7 +47,7 @@ validpgpkeys=(
 sha256sums=('SKIP'
             'fcfb29005032125010bcf18ce2f177af7c84c74cff729de8f0cc3e4a552a59a4'
             '252c7a78ffb1efe9751aabc93cc79031ef69dbc95baa7970cbaabcd5474fe7d8'
-            'eb00f260fd4efc56526683ba335a0f0a984ca7d3ab5cdc1e1b1bdb8ea82812ba'
+            'b30cd71018df7e98101ba0cf37054169006b096d2870a9f8467dd96378b02b98'
             '2697b762f4e745f0f279d2db2ddb7c3f835509d5354104316d794eea3f937e57'
             '693c0bdddda41ef7349cc17fb69e8ec2ae0b844a0aca25c4e73faaa905730f21'
             'd5f388f2b1283d646788436c7b84c83b3bb7278fc5e7fe3b4cd99533763aad08'

pkg/arch/kernel/arch.config

@@ -20,7 +20,7 @@
 ## ASHMEM / BINDERFS
 ##
 
-CONFIG_ASHMEM=m
+CONFIG_ASHMEM=y
 CONFIG_ANDROID=y
 CONFIG_ANDROID_BINDER_IPC=y
 CONFIG_ANDROID_BINDERFS=y