staging: brcm80211: remove target platform limitations for drivers

Several issue have been reported building the driver on big endian
systems. Following commits were done on driver Kconfig:

d4620396 Staging: brcm80211: disable drivers except for X86 or MIPS platforms
15e5201d Staging: brcm80211: disable drivers for PPC platforms

These problems have been resolved so the added 'depends' lines in
the Kconfig have been removed.

Compile tested it for following architectures:
little endian
	x86
	x86_64
	arm
	mips
big endian
	ppc64
	sparc64
	mips
Reported-by: NDavid S. Miller <davem@davemloft.net>
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Reported-by: NGreg Kroah-Hartman <gregkh@suse.de>
Reviewed-by: NRoland Vossen <rvossen@broadcom.com>
Reviewed-by: NPieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/Kconfig

@@ -7,7 +7,6 @@ config BRCMSMAC
 	default n
 	depends on PCI
 	depends on WLAN && MAC80211
-	depends on X86 || MIPS
 	select BRCMUTIL
 	select FW_LOADER
 	select CRC_CCITT
@@ -21,7 +20,6 @@ config BRCMFMAC
 	default n
 	depends on MMC
 	depends on WLAN && CFG80211
-	depends on X86 || MIPS
 	select BRCMUTIL
 	select FW_LOADER
 	select WIRELESS_EXT