ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6

Extends the maximum number of UART ports to 6 from 4 because AM335X
device have six UART ports.

Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
1 file changed