Fix: Concentrator fails less times to start, at most 5

Author: ABalanuta

Makefile

@@ -1,5 +1,5 @@
 NAME=oc-lora-gw-pf-dev
-VERSION=0.04-dev
+VERSION=0.05-dev
 MAINTAINER='Artur Balanuta'
 DEPS :=
 WORK_DIR=src

lora_gateway/libloragw/src/loragw_spi.native.c

@@ -53,7 +53,7 @@ Maintainer: Sylvain Miermont
 
 #define READ_ACCESS     0x00
 #define WRITE_ACCESS    0x80
-#define SPI_SPEED       8000000
+#define SPI_SPEED       6500000
 #define SPI_DEV_PATH    "/dev/spidev0.0"
 //#define SPI_DEV_PATH    "/dev/spidev32766.0"