nimble/controller: Fix checking PHY Options in LE Set PHY
nimble/controller: Fix checking PHY Options in LE Set PHY

We need to check complete value here, then we can store only lsb since
msb will be zero anyway.

X-Original-Commit: 502fbb752d18316eab8fb55e223a837b99452675

apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble