Don't skip checking for Raspberry Pi library (Fixes #166).

[kingosticks]

This fixes the build for me on Raspberry Pi.

Before:

-- Looking for XRRGetScreenResources in Xrandr
-- Looking for XRRGetScreenResources in Xrandr - found
-- Found SWIG: /usr/bin/swig2.0 (found version "2.0.12") 
-- Configured features:
-- Pulse-Eight CEC Adapter:                yes
-- Pulse-Eight CEC Adapter detection:      yes
-- xrandr support:                         yes
-- Raspberry Pi support:                   no

After:

-- Looking for XRRGetScreenResources in Xrandr
-- Looking for XRRGetScreenResources in Xrandr - found
-- Looking for bcm_host_init in bcm_host
-- Looking for bcm_host_init in bcm_host - found
-- Found SWIG: /usr/bin/swig2.0 (found version "2.0.12") 
-- Configured features:
-- Pulse-Eight CEC Adapter:                yes
-- Pulse-Eight CEC Adapter detection:      yes
-- xrandr support:                         yes
-- Raspberry Pi support:                   yes

I believe I have already signed the developer agreement.

[valdisrigdon]

👍

[apowers313]

👍

[kikeonline]

Works great in the Latest OSMC.

[bardal]

Please merge this in. I was hit by the same issue. Without this fix the pi build is broken (builds cleanly but no pi support).

[ruudboon]

Same here. Patch works fine

[apowers313]

Hi @opdenkamp, can this get a little merging love? :)

[bardal]

Also fixes #172

[opdenkamp]

i want to get a new version out this week, but I'm a bit busy with other stuff right now (as usual), so no promises

[kingosticks]

Thanks!

[apowers313]

@opdenkamp 🍺 :)

[ruudboon]

@apowers313 @opdenkamp Make it 3 🍺 🍺 🍺 :D