soc: qcom: remove hyp_assign based kernel protection

Patching kernel code is failing at __probe_kernel_write() since
kernel text is already protectd with hyp_assign so removing
protection, and relying on SMMU stage1 protection.

Change-Id: Ib0d368a8eadb9cd96e739a7bf0e69a4b9b379299
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>