LinuxKPI: 802.11: return proper value for IEEE80211_CRYPTO_AES_CCM

In case of LKPI_80211_HW_CRYPTO we convert from LinuxKPI cipher_suites
to net80211 ic_cryptocaps fields. For WLAN_CIPHER_SUITE_CCMP we
accidentally returned the bit number instead of the shifted value
which leads to ieee80211_crypto_newkey() setting IEEE80211_KEY_SWCRYPT,
which in turned lead to us trying to decode the frame again despite
HW had already done it.  This was found out of a discussion in D43634.

MFC after:	3 days
Reviewed by:	cc, adrian
Differential Revision: https://reviews.freebsd.org/D44208

sys/compat/linuxkpi/common/src/linux_80211.c

@@ -546,7 +546,7 @@ lkpi_l80211_to_net80211_cyphers(uint32_t wlan_cipher_suite)
 	case WLAN_CIPHER_SUITE_TKIP:
 		return (IEEE80211_CRYPTO_TKIP);
 	case WLAN_CIPHER_SUITE_CCMP:
-		return (IEEE80211_CIPHER_AES_CCM);
+		return (IEEE80211_CRYPTO_AES_CCM);
 	case WLAN_CIPHER_SUITE_WEP104:
 		return (IEEE80211_CRYPTO_WEP);
 	case WLAN_CIPHER_SUITE_AES_CMAC: