m7: Split out BCM4335 firmware by GSM/CDMA

BCM4335B0_002.001.006.0296.xxx.hcd is specific to the GSM or CDMA
variants of this device. Move it out of common.

This is from m7 gpe 4.4.3-KTU84L / m7ul 6.09.401.5.

Change-Id: I164dfe20e1da7493ab913854a91fb740a190548e