wlan: Increase max number of BSS in the scan list to 250

There was auto-connection failure issue at LGE Pyoungtaek (QE) site,
and the root cause was that there was too many APs around. There were
230+ APs. I found the following code in the prima 1.2PL and 1.1PL code.
Hence we are changing the max bss supported in the scan list to 250

Change-Id: I3f6f73b61da93bca8c603024d79f63e4874a0c61
CR-Fixed: 425972
diff --git a/CORE/SME/src/csr/csrInsideApi.h b/CORE/SME/src/csr/csrInsideApi.h
index 6ba16ff..3deb3f8 100644
--- a/CORE/SME/src/csr/csrInsideApi.h
+++ b/CORE/SME/src/csr/csrInsideApi.h
@@ -58,7 +58,7 @@
 
 #define CSR_MAX_2_4_GHZ_SUPPORTED_CHANNELS 14
 
-#define CSR_MAX_BSS_SUPPORT            150
+#define CSR_MAX_BSS_SUPPORT            250
 
 //This number minus 1 means the number of times a channel is scanned before a BSS is remvoed from
 //cache scan result