wimax/i2400m: Make boot retries a BUS-specific parameter

In i2400m-based devices, the driver's bootloader will retry to load
the firmware when things go wrong. The driver currently has a constant
(I2400M_BOOT_RETRIES) which governs the max number of tries.

However, different SKUs of the same hardware may admit or require
different numbers of retries due to it's particulars, so it is made a
BUS specific parameter and different values are assigned for 5x50
devices versus the 3200 ones.

Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Cindy H Kao <cindy.h.kao@intel.com>
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>

drivers/net/wimax/i2400m/fw.c

@@ -602,7 +602,7 @@ int i2400m_bootrom_init(struct i2400m *i2400m, enum i2400m_bri flags)
 	struct device *dev = i2400m_dev(i2400m);
 	struct i2400m_bootrom_header *cmd;
 	struct i2400m_bootrom_header ack;
-	int count = I2400M_BOOT_RETRIES;
+	int count = i2400m->bus_bm_retries;
 	int ack_timeout_cnt = 1;
 
 	BUILD_BUG_ON(sizeof(*cmd) != sizeof(i2400m_NBOOT_BARKER));