Add initial AzureWave AW-CM256SM NVRAM file

The AzureWave AW-CM256SM wireless module is a WiFi/BT combo
module built using the Cypress CYW43455. Add an initial
NVRAM based on the one provided for the Beagle-AI which
contains this WiFi module. We can update/improve this easily
enough if we get a newer rev of the NVRAM later.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

WHENCE

@@ -2963,6 +2963,7 @@ File: brcm/brcmfmac4356-sdio.AP6356S.txt
 Link: brcm/brcmfmac4356-sdio.firefly,firefly-rk3399.txt -> brcmfmac4356-sdio.AP6356S.txt
 Link: brcm/brcmfmac4356-sdio.khadas,vim2.txt -> brcmfmac4356-sdio.AP6356S.txt
 Link: brcm/brcmfmac4356-sdio.vamrs,rock960.txt -> brcmfmac4356-sdio.AP6356S.txt
+File: brcm/brcmfmac43455-sdio.AW-CM256SM.txt
 
 Licence: GPLv2. See GPL-2 for details.
 

brcm/brcmfmac43455-sdio.AW-CM256SM.txt

@@ -0,0 +1,66 @@
+aa2g=1
+aa5g=1
+AvVmid_c0=0,157,1,126,1,126,1,126,1,126
+boardflags=0x00080201
+boardflags2=0x40000000
+boardflags3=0x48200100
+boardrev=0x1304
+boardtype=0x6e4
+deadman_to=481500000
+devid=0x43ab
+dot11agofdmhrbw202gpo=0x1553
+ed_thresh2g=-54
+ed_thresh5g=-54
+extpagain2g=2
+extpagain5g=2
+femctrl=0
+itrsw=1
+ltecxfnsel=0x22
+ltecxgcigpio=0x32
+ltecxmux=0
+ltecxpadnum=0x0504
+macaddr=00:90:4c:c5:12:38
+manfid=0x2d0
+maxp2ga0=64
+maxp5ga0=80,82,76,77
+mcsbw202gpo=0x99355533
+mcsbw205ghpo=0x99855000
+mcsbw205glpo=0x99755000
+mcsbw205gmpo=0x9df55000
+mcsbw405ghpo=0xd9755000
+mcsbw405glpo=0xb8555000
+mcsbw405gmpo=0xed955000
+mcsbw805ghpo=0xd9555000
+mcsbw805glpo=0xc8555000
+mcsbw805gmpo=0xe9555000
+muxenab=0x10
+nocrc=1
+ofdmlrbw202gpo=0x0033
+pa2ga0=-112,6296,-662
+pa2ga1=-165,3699,-515
+pa5ga0=-143,6016,-683,-141,6013,-678,-137,5988,-670,-136,5982,-670
+pa5ga1=-161,3544,-499,-166,3543,-497,-169,3569,-497,-171,3598,-498
+pdoffset2g40ma0=10
+pdoffset40ma0=0xaaaa
+pdoffset80ma0=0xaaaa
+prodid=0x06e4
+rxchain=1
+rxgains2gelnagaina0=0
+rxgains2gtrelnabypa0=0
+rxgains2gtrisoa0=0
+rxgains5gelnagaina0=0
+rxgains5gtrelnabypa0=0
+rxgains5gtrisoa0=0
+sromrev=11
+swctrlmap_2g=0x00040004,0x00020002,0x00040004,0x010a02,0x1ff
+swctrlmap_5g=0x00100010,0x00200020,0x00100010,0x010a02,0x2f4
+swctrlmapext_2g=0x00000000,0x00000000,0x00000000,0x000000,0x000
+swctrlmapext_5g=0x00000000,0x00000000,0x00000000,0x000000,0x000
+tssipos2g=1
+tssipos5g=1
+tworangetssi2g=1
+tworangetssi5g=1
+txchain=1
+vcodivmode=1
+vendid=0x14e4
+xtalfreq=37400