[armel, armhf] Enable CRASH_DUMP

When set, this generates crash dump after being started by kexec. Useful
for debugging purpose on ARM. As this is already enabled for other arch,
enable it for ARM, as well (except marvell to keep it small).

debian/changelog

@@ -641,6 +641,7 @@ linux (4.19.26-1) UNRELEASED; urgency=medium
   [ Romain Perier ]
   * [rt] Update to 4.19.25-rt16
   * [armel/rpi] Add flavour for Raspberry Pi and Raspberry Pi Zero
+  * [armel, armhf] Enable CRASH_DUMP
 
  -- Ben Hutchings <ben@decadent.org.uk>  Tue, 12 Feb 2019 12:49:10 +0000
 

debian/config/armel/config.marvell

@@ -18,6 +18,7 @@ CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_ARM_APPENDED_DTB=y
 CONFIG_ARM_ATAG_DTB_COMPAT=y
 CONFIG_CMDLINE=""
+# CONFIG_CRASH_DUMP is not set
 # CONFIG_XIP_KERNEL is not set
 CONFIG_ATAGS_PROC=y
 CONFIG_VFP=y

debian/config/kernelarch-arm/config

@@ -5,6 +5,7 @@ CONFIG_MMU=y
 CONFIG_AEABI=y
 # CONFIG_OABI_COMPAT is not set
 CONFIG_CPU_SW_DOMAIN_PAN=y
+CONFIG_CRASH_DUMP=y
 CONFIG_SECCOMP=y
 CONFIG_KEXEC=y