android-4.14: replace CONFIG_DEBUG_RODATA with CONFIG_STRICT_KERNEL_RWX

This was renamed in 4.10 by 0f5bf6d0afe4 ("arch: Rename
CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX") in order to clarify
the option's importance.

Bug: 76186455
Test: grep -E STRICT_KERNEL_RWX -A 3 \
	android-4.14/Documentation/security/self-protection.rst
Change-Id: I6cc3356849c098c5f4c63a6d144440d6fee3c346
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Bug: 77982837
Merged-In: I6cc3356849c098c5f4c63a6d144440d6fee3c346
Signed-off-by: Steve Muckle <smuckle@google.com>