[BBBlue] rc_test_drivers broken for linux kernel >=5.x.y.z

Hello, I have reactivated a BeagleBoneBlue that was catching dust on my shelf and while updating the kernel

via

`sudo /opt/scripts/tools/update_kernel.sh --lts-5_4`

I found out that librobotcontrol seems broken on all kernels after 4.19.94-ti-r73.

```
Kernel: 5.4.106-ti-r41
BeagleBoard.org Debian Buster IoT Image 2020-04-06
Debian: 10.13

PASSED: gpio 0
PASSED: gpio 1
PASSED: gpio 2
PASSED: gpio 3
ERROR: ti-pwm driver not loaded for hrpwm0
ERROR: ti-pwm driver not loaded for hrpwm1
ERROR: ti-pwm driver not loaded for hrpwm2
ERROR: ti-eqep driver not loaded for eqep0
ERROR: ti-eqep driver not loaded for eqep1
ERROR: ti-eqep driver not loaded for eqep2
PASSED: pru-rproc
PASSED: uart1
PASSED: uart2
PASSED: uart4
PASSED: uart5
ERROR: i2c1 driver not loaded
PASSED: i2c2
ERROR: spi driver not loaded
PASSED: LED
PASSED: ADC iio

Currently running on a:
MODEL_BB_BLUE
Robot Control library Version:
1.0.5

```

Is this a librobotcontrol issue or is this a DeviceTree issue?

https://github.com/beagleboard/bb.org-overlays

claims it is supported.

Start by reproducing the reported failures with rc_test_drivers on the BeagleBoneBlue running kernel 5.4.106-ti-r41, after reviewing the kernel update command and the bb.org-overlays reference. Determine whether the missing ti-pwm, ti-eqep, I2C, and SPI drivers originate in librobotcontrol or the DeviceTree overlays; done means the cause is identified and the affected driver checks work on kernels at or above 5.x.

Written by the indexing model from the issue text.