hexagon: Don't select GENERIC_IOMAP without HAS_IOPORT support

In a future patch HAS_IOPORT=n will disable inb()/outb() and friends at
compile time. As hexagon does not support I/O port access it also
the GENERIC_IOMAP mechanism of dynamically choosing between I/O port and
MMIO access doesn't work so don't select it.

Reviewed-by: Brian Cain <bcain@quicinc.com>
Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: niklas88

arch/hexagon/Kconfig

@@ -31,7 +31,6 @@ config HEXAGON
 	select HAVE_ARCH_TRACEHOOK
 	select NEED_SG_DMA_LENGTH
 	select NO_IOPORT_MAP
-	select GENERIC_IOMAP
 	select GENERIC_IOREMAP
 	select GENERIC_SMP_IDLE_THREAD
 	select STACKTRACE_SUPPORT