qcacld-3.0: Add compile time flag RX_DESC_MULTI_PAGE_ALLOC

Add a compile time feature flag by name RX_DESC_MULTI_PAGE_ALLOC
which will enable the memory allocation of RX descriptors using
multiple pages instead of large contiguous memory.

Change-Id: Ia3803a3685c605c79a34a0c2c000d7ed4adb7d97
CRs-Fixed: 2456267
diff --git a/Kbuild b/Kbuild
index 7b23bcf..43f3479 100644
--- a/Kbuild
+++ b/Kbuild
@@ -2568,6 +2568,9 @@
 
 cppflags-$(CONFIG_DATA_CE_SW_INDEX_NO_INLINE_UPDATE) += -DDATA_CE_SW_INDEX_NO_INLINE_UPDATE
 
+#Flag to enable Multi page memory allocation for RX descriptor pool
+cppflags-$(CONFIG_QCACLD_RX_DESC_MULTI_PAGE_ALLOC) += -DRX_DESC_MULTI_PAGE_ALLOC
+
 ifdef CONFIG_MAX_LOGS_PER_SEC
 ccflags-y += -DWLAN_MAX_LOGS_PER_SEC=$(CONFIG_MAX_LOGS_PER_SEC)
 endif