qcacld-3.0: Add feature to enable generic shadow reg write

Add feature GENERIC_SHADOW_REGISTER_ACCESS_ENABLE to enable
shadow reg write for generic shadow registers.
This is enabled only for HSP.

Change-Id: I90302aa050baa9128313dbaf0c4ab57e426289b3
CRs-Fixed: 2794917
diff --git a/Kbuild b/Kbuild
index 62af178..7e2e01f 100644
--- a/Kbuild
+++ b/Kbuild
@@ -3268,6 +3268,7 @@
 
 cppflags-$(CONFIG_HIF_CPU_PERF_AFFINE_MASK) += -DHIF_CPU_PERF_AFFINE_MASK
 cppflags-$(CONFIG_SMMU_S1_UNMAP) += -DCONFIG_SMMU_S1_UNMAP
+cppflags-$(CONFIG_GENERIC_SHADOW_REGISTER_ACCESS_ENABLE) += -DGENERIC_SHADOW_REGISTER_ACCESS_ENABLE
 
 KBUILD_CPPFLAGS += $(cppflags-y)